Best Medical Credentialing Services in Washington for 2026: 10 Companies Compared by Price, Payers, and Fit

Medical credentialing services in Washington verify a provider's licenses, training, and work history, then enroll that provider with commercial plans, Medicare, and Apple Health. Among the 10 companies compared below, MedSole RCM publishes the lowest per payer price at $99, and two firms, EZ MD Solutions and AccordPro, keep offices in Washington.

Picture a typical Tacoma group adding an LICSW in the spring. Before that therapist sees an insured patient, the file has to clear Premera, Kaiser Permanente Washington, and two Apple Health plans. Each payer runs its own clock. All four pull the application from CAQH, so one stale profile stalls every file at once.

This guide compares 10 medical credentialing services in Washington on published price, local presence, payer coverage, billing, and fit. We checked every company fact on that company's own website in October 2026. The scope is Washington State, with its own payers, statutes, and Apple Health plans.

One disclosure before the list: MedSole RCM wrote this guide and appears in it. We put ourselves first, then held all 10 credentialing companies in Washington to one rule. If a price or claim isn't on the company's own site, it doesn't appear here.

Key Takeaways: Medical Credentialing in Washington in 2026

• Price: MedSole RCM charges $99 per payer application for credentialing and 2.99% of collections for medical billing. That's the lowest published per payer price among the 10 companies compared, as of October 2026.
• Washington law: Under RCW 48.43.750, health carriers must approve or deny a complete credentialing application within 90 days, and their decisions must average 60 days or less.
• State database: CAQH, now operating as DataSpring, has been Washington's credentialing database since 2024. Access to the old ProviderSource system through OneHealthPort ended on December 31, 2023.
• Local offices: EZ MD Solutions (Vancouver) and AccordPro (Seattle) have Washington offices. The other eight medical credentialing services in Washington on this list work from out of state.
• Price transparency: Three of the 10 companies publish a clear credentialing price on their websites. The rest quote after a call or show only partial figures.
• Apple Health: Enrollment in ProviderOne comes first. After that, each of the five Apple Health managed care plans credentials the provider on its own.

10 Medical Credentialing Companies in Washington at a Glance

The table compares 10 medical credentialing services in Washington by fit, local presence, published price, and billing. Each price comes from the company's own website, checked on October 18, 2026. Solo therapists, new clinics, and 30-provider groups can read the same columns.

Credentialing services for multispecialty medical practices comparison: 10 Washington options (checked October 18, 2026)

MedSole RCM charges $99 per payer application for credentialing and 2.99% of collections for medical billing. "Quote only" means the company shows no price on its website, so you get a number after a discovery call.

Per payer pricing matters in Washington because few practices stop at two plans. A King County behavioral health group can need Premera, Regence, Kaiser Permanente Washington, UnitedHealthcare, Aetna, Cigna, and two Apple Health plans before the schedule fills.

How We Compared These Washington Credentialing Companies

We checked each of these medical credentialing services in Washington against the same seven criteria, using only what its own website said on October 18, 2026. No company paid for a spot on this list, and no company saw it before publication.

1. Washington presence: a verified Washington address, or an honest statement of remote service.
2. Payer coverage: commercial plans, Medicare, Apple Health, and hospital privileging.
3. Published pricing: a price a reader can see before booking a call.
4. Billing under the same roof: one team that handles enrollment and claims.
5. Washington specifics: CAQH, Apple Health plans, and Washington payers named on the site.
6. Transparency: clear terms, limits, and disclaimers.
7. Verifiability: claims a reader can check without taking the vendor's word for them.

Performance claims, such as accuracy rates or client counts, appear in quotes with the company's name attached. We don't restate them as fact. Our search started with the top outsourced credentialing and enrollment services serving Washington State, not Washington DC, and the list ends at 10.

This page is the Washington cut of our national credentialing company rankings. A national list can't show which provider credentialing companies know Washington's CAQH rule or its five Apple Health plans. Most credentialing companies file paperwork the same way, so state knowledge becomes the deciding factor.

What Medical Credentialing Services in Washington Include

Medical credentialing services in Washington cover five core jobs: payer enrollment, primary source verification, CAQH maintenance, hospital privileging, and recredentialing. Washington adds two layers: a state rule that routes carrier applications through CAQH, and a separate credentialing file with each Apple Health plan.

Core services:

• Payer enrollment: applications to Premera Blue Cross, Regence BlueShield, Kaiser Permanente Washington, UnitedHealthcare, Aetna, Cigna, Medicare, and Apple Health.
• Primary source verification: confirming licenses, degrees, residency, board certification, and malpractice history with the source that issued each one.
• CAQH (DataSpring) maintenance: keeping the profile complete and re-attested every 120 days, at no cost to clinicians on DataSpring. Our guide to DataSpring profile setup covers each section of the profile.
• Hospital privileging: preparing the Washington Practitioner Application packet for each medical staff office.
• Recredentialing and audits: tracking each payer's cycle, often every three years, so a lapse doesn't start denying claims.

Services specific to Washington:

• Apple Health plan credentialing: a separate application to each managed care plan after ProviderOne enrollment.
• Contract and fee schedule review: reading the rates before anyone signs.
• EFT and ERA setup: so deposits and remittance data start with the first paid claim.
• Effective date confirmation: getting the in-network start date in writing before insured patients go on the schedule.

Four terms get mixed up all the time. Credentialing verifies qualifications, and enrollment loads the provider into the payer's system. Contracting sets the rates. Privileging lets a provider work inside a hospital. Medical practice credentialing touches all four, and each step runs on its own clock.

A credentialing verification organization (CVO) checks credentials on behalf of hospitals and health plans. Healthcare credentialing services work for the practice instead: they file, follow up, and fix what payers send back. Credentialing verification organizations and credentialing services can share data, but they answer to different clients.

Washington Credentialing Companies That Also Handle Medical Billing

Practices that hand credentialing and billing to one team close an expensive gap: the payer approves the provider, but the first claims deny because nobody told the billing side the effective date. Five of the medical credentialing services in Washington on this list belong in this group.

Those five are MedSole RCM, EZ MD Solutions, AccordPro, Credex Healthcare, and Practolytics. Credentialing companies for physicians that also post claims can load the payer ID, fee schedule, and start date the same week approval lands. Insurance credentialing companies without a billing arm hand that step back to your staff.

If you want medical billing services that handle credentialing, or medical billing experts in Washington who see both sides of the file, start with these five. Among them, MedSole RCM is the only one that publishes a billing rate on its website, as of October 2026.

1. MedSole RCM: Best for Fast, Affordable Credentialing for Washington Solo and Group Practices

MedSole RCM (Mesa, Arizona; serves Washington practices from out of state) handles commercial payer enrollment, Medicare enrollment through PECOS, Apple Health and managed care credentialing, DataSpring setup and re-attestation, and recredentialing for $99 per payer application.

Best for: Washington practices that need fast provider enrollment at an affordable price, including groups enrolling providers across several locations or into Oregon and Idaho, with credentialing at $99 per payer and billing at 2.99% handled by one team.

• Headquarters: Mesa, Arizona, serving all 50 states, including Washington
• Credentialing price: $99 per payer application, on every package
• Medical billing: 2.99% of collections, with no setup fee, software fee, or monthly minimum; 4.49% of what's recovered for denial management or AR follow-up alone
• Scale: more than 4,000 providers served, billing more than 900 payers
• Specialties: more than 60
• Reviews: 52 reviews, all five stars (37 on Google, 15 on Trustpilot), on the MedSole client reviews page
• Packages: solo provider, group practice, and multistate telehealth

MedSole RCM charges $99 per payer application for credentialing and 2.99% of collections for medical billing. That's the lowest published per payer price among the 10 companies compared here, as of October 2026.

Washington presence: MedSole has no Washington office. Like most medical credentialing companies, MedSole works through CAQH and each payer's portal, and Washington carriers pull applications from those same systems. Onsite hospital privileging is the one step where a local office can help.

Credentialing services: commercial plans, Medicare through PECOS and Noridian, Apple Health plans, DataSpring setup and re-attestation, EFT and ERA enrollment, effective date confirmation, contract review and fee negotiation, recredentialing, and revalidation. MedSole credentials physicians, NPs, PAs, and mental health and rehab therapists.

Washington specifics:

• Keeps the CAQH profile current for Premera, Regence, Kaiser Permanente Washington, and the Apple Health plans that pull from it
• Files the Washington Practitioner Application through CAQH where a payer requires it, as Kaiser Permanente Washington does
• Opens a separate file with each of the five Apple Health plans after ProviderOne enrollment

Speed:

• Files applications within 48 hours of receiving complete documents
• Calls every payer on the file weekly
• Escalates to provider relations when an application stops moving
• Tracks effective dates, so you know which providers can bill today
• Assigns a dedicated credentialing manager to each client

Client feedback:

• Amy Burlison, LPC (May 2026): "Less than two weeks for a major insurer."
• Angela Tamayo, clinical social worker (June 2026): "UHC, it only took about 2 to 3 weeks, which exceeded my expectations."
• Alonda Callender, clinical social worker (May 2026): "approved with one panel in less than three weeks of starting the process."
• Jacqueline Dotson, clinical social worker (June 2026): "this has taken a huge administrative burden off my plate."

These reviews don't name a Washington payer. Like the other credentialing companies in Washington on this list, MedSole can't move a payer's internal queue; it can keep the file complete and keep calling.

Groups and multiple states: The group package covers several providers under one or more tax IDs at the same $99 per payer application. The multistate telehealth package lets a Vancouver group add Oregon clinicians, or a Spokane group add Idaho clinicians, without opening a new vendor relationship.

After approval: MedSole tracks every recredentialing date on the roster. Premera and Wellpoint Washington recredential every three years, Kaiser Permanente Washington at least that often, and Medicare revalidates every five. Our revalidation and credentialing assistance covers the Medicaid side.

Billing: The same team runs medical billing at 2.99% of collections, so claims start as soon as the effective date lands. Nobody has to forward an approval letter between two vendors.

Keep in mind: MedSole has no Washington office you can visit. It isn't a hospital privileging platform or an enterprise credentialing verification organization either.

Want to see how that process would run against your own Washington payer list? Our provider enrollment and credentialing services page lays it out step by step.

2. EZ MD Solutions: Best for a Vancouver, Washington Team That Also Handles Billing

EZ MD Solutions (Vancouver, WA) handles initial credentialing, recredentialing, payer credentialing, primary source verification, staff privileging, expedited credentialing, audits, and telehealth credentialing.

Best for: Washington practices that want a credentialing partner based in the state, bundled with billing, coding, and virtual staff.

Washington presence: EZ MD lists its corporate office at 701 NE 136th Ave., Suite 200, Vancouver, WA 98684. That makes it the only company on this list headquartered in Washington.

Credentialing services: the eight services above, with medical billing and coding offered by the same company.

Washington specifics: Its credentialing page doesn't name Washington payers, the state's CAQH rule, or the Apple Health plans.

Published pricing: None on its credentialing, billing, or FAQ pages. EZ MD says "There are no hidden fees or charges" and quotes after a consultation.

In the company's words: Founded in 2019, EZ MD says it "supports 75+ active US healthcare practices" with "a team of 200+ across the US, Latin America, and Asia."

Keep in mind: You won't see a price before the call. Ask the team how many Premera and Apple Health files it closed in the past year, since the website doesn't say.

3. AccordPro: Best for Seattle Practices That Want Billing, Credentialing, and Bookkeeping Together

AccordPro (Seattle, WA) handles physician, nurse practitioner, facility, and ancillary provider credentialing, along with medical billing and bookkeeping.

Best for: Puget Sound practices that want one firm for billing, credentialing, and the books.

Washington presence: AccordPro lists an office at 450 Alaskan Way S, Suite 200, Seattle, WA 98104.

Credentialing services: physician, NP, facility, and ancillary credentialing, plus recredentialing and demographic updates.

Washington specifics: Its Washington page names Premera Blue Cross, Regence BlueShield, L&I, Aetna, Cigna, Humana, and UnitedHealthcare. The same page answers questions on Premera and Regence credentialing and covers Washington's B&O tax for bookkeeping clients.

Published pricing: None. AccordPro describes "Fair, simple, competitive fees" and quotes on request.

In the company's words: AccordPro says it supports practices "throughout Washington," including Seattle, Bellevue, Kirkland, Tacoma, Spokane, and Redmond.

Keep in mind: The site lists no prices or timelines, so ask for both in writing before you sign.

4. Credex Healthcare: Best for Washington Providers Who Also Need Licensing and Privileging Help

Credex Healthcare (Jacksonville, FL) handles primary source verification, payer credentialing, hospital privileging, DEA and state license verification, and medical billing.

Best for: Washington providers who want credentialing alongside licensing and hospital privileging support.

Washington presence: Credex lists its headquarters at 5011 Gate Parkway, Jacksonville, FL. Its site shows no Washington office.

Credentialing services: primary source verification, payer credentialing, hospital privileging, DEA and license verification, recredentialing, and credentialing audits, per its Washington guide.

Washington specifics: Its Washington guide names UnitedHealth, Premera Blue Cross, Molina Healthcare, Aetna, and Kaiser Permanente.

Published pricing: None. Credex describes "transparent rates based on a percentage or per-claim rates" for billing without listing a number.

In the company's words: Credex says it has "more than 12 years" of experience and cites a "98% accuracy rate."

Keep in mind: Credex works from Florida, with no Washington office listed and no published price.

5. Practolytics: Best for Washington Multispecialty Groups That Want Credentialing Tied to Billing

Practolytics (Duluth, GA) handles payer enrollment, commercial credentialing, recredentialing monitoring, CAQH maintenance, provider rosters, telehealth credentialing, and multistate coordination inside a full RCM service.

Best for: multispecialty groups and practices with several locations that want credentialing connected to billing.

Washington presence: Practolytics lists an office in Duluth, Georgia, and serves Washington from there.

Credentialing services: the enrollment, CAQH, roster, and multistate services named on its Washington page.

Washington specifics: Its Washington page still describes OneHealthPort and ProviderSource workflows. The state moved carrier credentialing to CAQH in 2024, so confirm the team works from the current system.

Published pricing: Its credentialing FAQ lists "$300-$800 per insurance network" for a single provider, without saying whether that figure is Practolytics' own rate. Its billing page names pricing models but no percentage.

In the company's words: Its homepage says "Trusted since 2014" in one place and "20+ years" in another.

Keep in mind: Ask whether the FAQ range is the price you'd pay, and how the team handles Washington's CAQH requirement today.

Bundling closes the gap that drains cash from a new provider's first quarter: the weeks between approval and the first paid claim. One team holds the effective date, the payer ID, and the fee schedule, so the first claim goes out clean.

MedSole RCM charges $99 per payer application for credentialing and 2.99% of collections for medical billing, and the outsourced medical billing side starts the day a provider goes live. Anyone comparing medical credentialing services in Washington should ask one question early: who submits the first claim?

Credentialing Specialists, Consultants, and Platforms Serving Washington

These five firms stand out for one slice of the work: startup consulting, contracting, privileging, mental health panels, or software. PPS and Medwave offer billing too, but we grouped them here for those specialties. Among medical credentialing services in Washington, this group includes credentialing consultants, healthcare credentialing companies with a narrow focus, and one software vendor.

6. Physician Practice Specialists: Best for Opening a New Washington Practice

Physician Practice Specialists handles insurance credentialing, provider enrollment, Apple Health and Medicare enrollment, contract negotiations, and practice startup consulting for Washington practices.

Best for: physicians opening a new Washington practice who want startup planning and payer strategy from a credentialing consulting company.

Washington presence: PPS has a dedicated Washington services page. Its homepage lists no office address.

Credentialing services: credentialing and maintenance, telemedicine credentialing, Medicare individual, group, and reassignment enrollment, Apple Health enrollment, DMEPOS, and ERA and EFT setup.

Washington specifics: The Washington page links to HCA provider information and lists plans the team has worked with. A few names on that list predate recent mergers.

Published pricing: No price for the initial enrollment project. Its credentialing page describes the maintenance agreement as "typically between $45-$60 per provider."

In the company's words: PPS says it has worked "since 2008," serves "all 50 states," and assigns a dedicated account manager to each client.

Keep in mind: PPS scopes each proposal to the practice, so the total stays unknown until after a call.

7. Medwave: Best for Washington Practices That Want Payer Contracting and Rate Negotiation

Medwave (Cranberry Township, PA) handles medical credentialing, recredentialing, payer contracting, rate negotiations, and medical billing, with a dedicated Seattle service page.

Best for: practices that want credentialing and contracting services from one vendor, with rate work included.

Washington presence: Medwave has no Washington office. Its Seattle page covers the Puget Sound region.

Credentialing services: credentialing, recredentialing, payer contracting, and rate negotiations.

Washington specifics: The Seattle page names Seattle, Bellevue, Redmond, Kirkland, Renton, Federal Way, Kent, Burien, Shoreline, and Tacoma.

Published pricing: Its pricing page says credentialing rates are "based on a per provider / per insurance company price," with no figures. Billing is a percentage of collections, quoted after a needs review.

In the company's words: Medwave says "the higher the practice's volume of claims; the lower the percentage."

Keep in mind: Pricing is quote only, and Medwave runs the work from Pennsylvania.

8. White Glove Credentialing: Best for Washington Hospital Privileging and Locums Files

White Glove Credentialing handles payer credentialing, hospital and facility privileging, and locums credentialing, with physician licensing and billing offered through sister companies.

Best for: providers whose main need is hospital privileging, and who want itemized prices before the first call.

Washington presence: White Glove says it serves "all 50 states and DC." Its site doesn't state a location.

Credentialing services: payer credentialing, hospital and facility privileging, and locums and travel packages.

Washington specifics: None named on its site.

Published pricing: payer credentialing costs $499 onboarding per provider, plus $349 per payer, plus $50 a month. Privileging runs $2,000 plus $150 a month, and locums packages cost $4,000 a year. Its sister company, White Glove Medical Billing, lists billing at 6% to 8% of collections with a $500 monthly minimum.

In the company's words: Its disclaimer says outcomes and timelines "vary by applicant and are not guaranteed."

Keep in mind: The $349 per payer fee is about 3.5 times MedSole's $99, before the onboarding and monthly charges. Among the hospital credentialing companies reviewed here, White Glove is the only one that publishes privileging prices.

9. NW Psychological Credentialing: Best for Washington Therapists Joining Commercial Panels

NW Psychological Credentialing (Portland, OR metro) handles commercial insurance credentialing for mental health professionals in Oregon, Washington, California, and Colorado.

Best for: Washington therapists who only need commercial panels.

Washington presence: The company sits in the Portland metro area and serves Seattle, Spokane, Tacoma, Vancouver, Olympia, and Yakima from there.

Credentialing services: application preparation, submission, follow-up, and a provider portal for status tracking.

Washington specifics: It works with eight commercial carriers: Blue Cross Blue Shield, UnitedHealthcare, Cigna, Aetna, Providence, PacificSource, First Choice Health, and Carelon Behavioral Health.

Published pricing: $200 for one carrier, $500 for three, and $900 for five, or about $167 to $200 per carrier.

In the company's words: It says it's "Trusted by" more than 500 therapists and shows a 4.9 out of 5 rating.

Keep in mind: The service covers mental health only, with no Medicare, no Apple Health, and no billing.

10. MedTrainer: Best for Washington Groups That Want Credentialing Software

MedTrainer offers credentialing management software with a direct CAQH integration, plus a managed credentialing service run by its own specialists.

Best for: larger Washington groups and facilities that want to run credentialing in house on software, or hand it to the vendor's team.

Washington presence: Its product page doesn't state a location. MedTrainer has published a Washington credentialing guide.

Credentialing services: software for onboarding, document collection, and CAQH sync, plus a managed service option.

Washington specifics: Its Washington guide, updated May 2025, still describes ProviderSource, which stopped serving Washington on December 31, 2023.

Published pricing: None. The pricing page shows plan tiers without figures.

In the company's words: MedTrainer calls its managed service "one clear, all-inclusive price" without naming the amount.

Keep in mind: MedTrainer doesn't offer medical billing, and both the software and the managed service are quote only.

Other Names in Washington Credentialing Search Results

BellMedEx, Swift MDS, LSJ Credentialing, NW Credentialing Consultants, Capline Healthcare Management, Vital Health Service, and EXP Credentialing Services also show up in Washington search results. Their sites didn't give enough verifiable Washington detail for a full card as of October 18, 2026, so they're listed here without a ranking.

What Medical Credentialing Services in Washington Cost in 2026

Medical credentialing services in Washington charge per payer, per provider, or by package. Three of the 10 companies compared publish a clear credentialing price, and MedSole RCM's $99 per payer application is the lowest of the three. The other credentialing companies in Washington on this list quote after a call or show partial figures.

Published credentialing prices in Washington (checked October 18, 2026)

MedSole RCM charges $99 per payer application for credentialing and 2.99% of collections for medical billing. Every package, from a solo provider to a group with several tax IDs, uses that same per payer price.

A worked example: one solo provider joining six payers in year one.

NW Psychological Credentialing doesn't make an even comparison. Its package for five carriers costs $900 and covers commercial mental health panels only, with no Medicare or Apple Health files.

Billing rates follow the same pattern. MedSole RCM bills 2.99% of collections with no monthly minimum, while White Glove's sister company, White Glove Medical Billing, lists 6% to 8% with a $500 monthly minimum. A practice collecting $40,000 a month pays $1,196 at 2.99%, or $2,400 to $3,200 at 6% to 8%.

Government and platform fees for Washington providers in 2026

The Federal Register fee notice sets the $750 Medicare amount for 2026 and lists the CMS-855I exemption. Washington's matching Apple Health fee appears in the HCA fee bulletin, effective January 1, 2026.

Questions to ask about any per payer price:

• Does it include DataSpring setup and re-attestation?
• Does it cover every follow-up call until the payer decides?
• Will the team confirm the effective date?
• Is EFT and ERA setup part of the fee?
• Do recredentialing reminders come with it?
• Does resubmitting to the same payer cost extra?

Thinking about hiring in house instead? Our breakdown of what credentialing specialists charge compares a salaried coordinator with outsourced credentialing services.

If your Washington payer list runs longer than six plans, the gap widens with every one. Our $99 per payer credentialing page shows what each application includes.

Washington State Credentialing Requirements in 2026: The Law, CAQH, and the WPA

Washington State credentialing runs on three rules every practice manager should know. Medical credentialing services in Washington build their whole process around them:

• A state law that puts health carriers on a 90-day clock
• A single state credentialing database: CAQH, now DataSpring
• A standard form, the Washington Practitioner Application

Washington's Credentialing Deadline: 90 Days Under RCW 48.43.750

Under RCW 48.43.750, a health carrier must approve or deny a credentialing application within 90 days of receiving a complete application. Since June 1, 2020, the carrier's decisions must also average no more than 60 days.

The same statute requires carriers to take applications through the database the state selected, and it bars them from demanding another format. Three limits matter as much as the deadline:

• The law doesn't require a carrier to approve anyone or place a provider in its network.
• It doesn't apply to delegated credentialing arrangements.
• It gives the Office of the Insurance Commissioner no oversight or enforcement duty under this section.

The 90-day clock starts at "complete." That's why a clean first submission matters more than a fast one with a missing malpractice certificate.

CAQH (DataSpring) Has Been Washington's Credentialing Database Since 2024

Washington's credentialing database is CAQH, now operating as DataSpring. The Foundation for Health Care Quality, which runs the state's administrative simplification program, names CAQH as the chosen vendor for Washington providers and health plans.

Under RCW 48.165.035, the state's uniform electronic process serves as the sole source of the credentialing information hospitals and payers require, for the data it covers. That law dates to 2009. ProviderSource, the earlier system, stopped serving Washington when access through OneHealthPort ended on December 31, 2023.

A finished profile still won't reach a plan on its own. Each health plan needs access granted inside the profile, or the plan can't pull the application.

The Washington Practitioner Application (WPA) and Hospital Privileging in Washington

The Washington Practitioner Application (WPA) is the standard form Washington payers and hospitals use to collect provider credentials. Kaiser Permanente Washington requires the WPA through CAQH, doesn't accept paper applications, and recredentials practitioners at least every three years.

Hospital systems use the same form. MultiCare's credentialing office, for example, accepts one WPA for its hospitals and clinics. Privileging stays separate from payer credentialing and follows each hospital's bylaws and medical staff calendar, so a hospital approval doesn't put you in any payer's network.

Apple Health Credentialing in Washington: ProviderOne Plus Five Managed Care Plans

Apple Health enrollment happens in ProviderOne, which the Health Care Authority (HCA) runs. After that, each managed care plan credentials the provider through its own process. The HCA service area matrix for 2026 lists five plans:

• Community Health Plan of Washington
• Coordinated Care of Washington
• Molina Healthcare of Washington
• UnitedHealthcare Community Plan, which serves 15 counties rather than the whole state
• Wellpoint Washington (the plan once called Amerigroup)

HCA revalidates Apple Health enrollment at least every five years, and CMS has directed HCA and DSHS to finish revalidating all Apple Health providers by June 5, 2028. The full ProviderOne process lives in our Washington Medicaid provider enrollment guide.

Medicare Credentialing in Washington Through Noridian and PECOS

Medicare enrollment for Washington runs through Noridian Healthcare Solutions, the contractor for Jurisdiction F on the CMS Jurisdiction F page, using PECOS. Physicians and non-physician practitioners filing the CMS-855I don't pay the $750 application fee.

Medicare revalidates enrollment every five years. Most medical credentialing services in Washington run the Medicare file alongside the commercial ones, and our guide to Medicare enrollment through PECOS walks through each form.

How Long Credentialing Takes in Washington, Payer by Payer

Most Washington payers publish a range of 45 to 60 days once an application is complete, and RCW 48.43.750 caps carrier decisions at 90 days, with an average of 60 or less. Anyone comparing medical credentialing services in Washington should ask each vendor to work from these published numbers.

Washington payer credentialing timelines, as each payer publishes them (checked October 18, 2026)

"Not published" means the payer's own page gives no number. Provider credentialing companies that promise a firm date for Regence or Molina are guessing, and so are any credentialing companies in Washington that quote one timeline for every plan.

Five Reasons Washington Credentialing Files Stall

• Incomplete application: Washington's 90-day clock starts only at "complete," so one missing reference letter restarts the wait in practice.
• CAQH access not granted: the profile can be perfect, but a plan without access can't pull it.
• Expired attestation: DataSpring runs on a 120-day attestation cycle, and a lapsed attestation leaves the plan looking at data it can't rely on.
• Data mismatches: the name, NPI, practice address, and TIN have to match across CAQH, the WPA, and the payer's form.
• Contract load lag: approval isn't the finish line. UnitedHealthcare allows up to 60 more days to load the contract.

A file nobody calls about sits in a queue. MedSole's credentialing team calls every payer on every open file weekly and escalates to provider relations when the status stops changing. That rhythm can't speed up a payer's internal review, but it keeps a file from going quiet for a month.

MGMA's research shows how common the problem is. In an MGMA Stat poll from November 2025, 32% of 131 responses reported a credentialing backlog (23%), a CVO delay (3%), or work slipping into the first quarter (6%).

If one of those five stall points sounds like your current file, our fast provider enrollment page shows how we keep Washington applications moving.

Solo Provider, New Practice, or Multi-Location Group: Matching a Washington Credentialing Service to Your Practice

The right Washington credentialing service depends on the shape of your practice. Solo providers need a low per payer price, new practices need setup steps in the right order, and groups need a roster that tracks every location. The medical credentialing services in Washington above sort along those lines.

Solo Providers in Washington

Solo files are small, so the per payer price drives the total. A therapist joining six plans pays $594 at MedSole's $99 rate, with CAQH setup, attestation, and maintenance included.

NW Psychological Credentialing offers a niche option for therapists who only want commercial panels. Credentialing companies for physicians handle a solo MD the same way, with Medicare added to the list.

New Practices Opening in Washington

A new practice has to move in order, because each step needs a number from the one before it:

1. Washington license
2. Type 2 NPI for the practice
3. Tax ID (TIN)
4. Business entity
5. CAQH profile
6. Payer applications

MedSole forms an LLC or PLLC for $349 plus state filing fees, and Physician Practice Specialists adds startup consulting. If you're a new owner asking which is the best credentialing service for medical groups, start by asking who handles the entity and NPI steps.

Multisite and Multistate Groups in Washington

Every location and every rendering provider has to appear on every payer roster with the right address and tax ID. Groups adding Oregon or Idaho clinicians also need parallel enrollment in those states. Washington's full membership in the Interstate Medical Licensure Compact shortens physician licensing.

Our guide to multistate telemedicine credentialing covers the payer side of crossing state lines. If you're hunting for the best provider enrollment service for healthcare groups, or the best credentialing service for multispecialty physician groups, ask each vendor for a sample roster report before you sign.

Hospital-Affiliated Practices in Washington

Hospital privileging runs on the WPA and the medical staff calendar, which meets on its own schedule. The RCW 48.43.750 deadline doesn't apply where a facility holds a delegated credentialing arrangement with the carrier, so delegated groups follow the delegate's timeline. Regional MSO credentialing works the same way, with committee dates setting the pace.

Running more than one Washington location? Our group practice credentialing package keeps every provider's payer status and effective date in one place.

Washington Credentialing Rules by Provider Type

Every Washington provider type goes through CAQH and each payer for credentialing. The licensing body, the processing queue, and a few special rules differ, and medical credentialing services in Washington plan each file around them.

Washington licensing bodies and credentialing notes by provider type

Physician files fall under what people search as md credentialing services, and NP and PA files fall under app credentialing services. For both, the Washington license number has to exist before any payer file opens.

Therapy groups that buy therapy billing and credentialing services from one vendor avoid the gap between panel approval and the first clean claim. MedSole covers both, with billing at 2.99% of collections. Licensing comes before all of it, and the licensing section below explains how the two steps differ.

Can Washington Providers Bill Before Credentialing Is Approved?

In most cases, not as an in-network provider. Washington's credentialing statute sets a decision deadline but doesn't require carriers to pay for care delivered before approval. The answer depends on each payer's contract and effective date, and medical credentialing services in Washington can confirm that date early.

Commercial Plans in Washington

RCW 48.43.750 governs how fast a carrier decides. It says nothing about paying for earlier visits. Ask each payer, in writing, which effective date it will assign, and get that date confirmed before insured patients go on the schedule. Approval isn't the last step either, since UnitedHealthcare allows up to 60 days after approval to load the contract.

Medicare Effective Dates for Washington Providers

Medicare follows federal rules. Under 42 CFR 424.520, the effective date for physicians and other practitioners is the later of two dates: the filing date of an application the contractor approves, or the date the provider began furnishing services at a new practice location.

42 CFR 424.521 lets those providers bill for services up to 30 days before that date when circumstances prevented earlier enrollment. After a Presidential disaster declaration, that window stretches to 90 days.

Options While a Washington File Is Pending

• Self-pay with clear notice: the patient agrees in writing to pay out of pocket.
• Hold the claims: bill once the payer confirms the effective date, knowing it may not cover earlier visits.
• Single case agreement: an arrangement for one patient's continuity of care, covered in our single case agreement guide.
• Another credentialed provider in the group: only where the payer's rules allow it.

Ask the payer before choosing any of these. A short call to provider services costs less than a stack of denials.

Washington Credentialing Changes in 2026 and Myths to Retire

Washington State credentialing has changed several times since 2024, and some guides still ranking today describe systems the state retired. Dates and sources matter here, so each change below carries one.

Washington Credentialing Changes, Dated

• August 27, 2026: CMS ended its nationwide moratorium on certain new DMEPOS supplier enrollments after six months. Separate moratoria on new home health agency and hospice enrollments, also set for six months, began May 13, 2026.
• August 28, 2026: HCA announced that CMS directed HCA and DSHS to revalidate all Apple Health providers by June 5, 2028.
• June 7, 2026: CAQH began operating as DataSpring. Washington's state database didn't change, only its name.
• January 1, 2026: HCA moved Apple Health provider enrollment support from email to the Secure Access Washington (SAW) portal, and the Apple Health institutional application fee rose to $750.
• January 1, 2025: the Foundation for Health Care Quality took over from OneHealthPort as the state's lead organization for administrative simplification.
• June 30, 2027 (upcoming): the ARNP title becomes APRN.

Washington Credentialing Myths and the Facts

Five myths still show up in sales calls and in older guides about medical credentialing services in Washington:

1. Myth: ProviderSource is Washington's credentialing database. Fact: access to ProviderSource through OneHealthPort ended on December 31, 2023, and CAQH has served as the state database since 2024, per the Foundation's CAQH transition FAQ.
2. Myth: You still need OneHealthPort to get credentialed. Fact: OneHealthPort sign-on still opens payer portals for eligibility, claims, and prior authorization, but credentialing runs through CAQH.
3. Myth: A finished CAQH profile reaches every plan. Fact: each plan needs access granted inside the profile.
4. Myth: Washington carriers must pay you while a file is pending. Fact: RCW 48.43.750 sets a decision deadline and creates no interim payment.
5. Myth: Washington is an "any willing provider" state. Fact: the credentialing statute doesn't require carriers to add anyone to a network, and state rules don't require issuers to accept any individual provider.

Licensing vs. Credentialing in Washington State

A Washington license comes first, and the state issues it. The Washington Medical Commission licenses MDs and PAs, and the Washington State Board of Nursing licenses nurses and ARNPs. Most other professions go through the Department of Health.

Credentialing comes second, from each payer, so no medical credentialing services in Washington can submit a payer file before the license number exists.

DOH posts the application dates it's processing, by profession group, on its DOH application status page. As of October 15, 2026, the dates were:

• Behavioral health professions: August 6, 2026
• Applied behavior analysis professions: October 13, 2026
• Dental professions: September 23, 2026
• All other credentials: August 21, 2026

Treat those dates as queue positions. DOH doesn't promise a turnaround time with them.

The "credentialing application" people search for means two things in Washington: the CAQH (DataSpring) profile that carriers pull, and the WPA that hospitals and some plans use. Once DOH issues the license, anyone can confirm the provider credentials through DOH's provider credential search.

How to Choose a Medical Credentialing Company in Washington

The best fit publishes its price, follows up on a fixed schedule, and handles Washington's CAQH and Apple Health steps without reminders. Run the checks below on any of the credentialing companies in Washington you're considering.

Seven Questions to Ask a Washington Credentialing Company

Put these to every credentialing company on your shortlist, including any of the medical credentialing services in Washington above:

1. Price: Is the per payer price on the website? A published number can't drift after the sales call.
2. Follow-up: Does someone call each payer weekly, and who makes the call? Silence lets a file sit in a queue.
3. CAQH access: Does the team grant and check plan access inside DataSpring for every Washington plan?
4. Apple Health: Does the team open a separate file with each Apple Health plan? The plans don't share approvals.
5. Effective date: Will the team confirm the effective date in writing? Your schedule depends on it.
6. Recredentialing: Does the team track Premera, Kaiser Permanente Washington, and Wellpoint Washington, which each recredential every three years?
7. First claim: Does the same team submit the first claim after approval, or does that job fall back to your staff?

Credentialing Software vs. a Credentialing Service in Washington

Software suits groups with staff to run it. MedTrainer, for example, sells credentialing software with a CAQH integration, and someone in your office still files, calls, and fixes rejections. A credentialing service does that work for you, which fits practices without a dedicated credentialing person.

A credentialing verification organization is a third model. It verifies credentials for plans and hospitals and doesn't file the practice's own applications. If you run a small clinic tied to a hospital and want the best credentialing service for small hospital-affiliated practices, first check which steps the hospital's medical staff office already covers.

Local Washington Office vs. a National Credentialing Team

A Washington office helps most with onsite hospital privileging. Payer credentialing runs through CAQH and payer portals, and both work the same from Seattle or Arizona.

Under RCW 48.43.045, health plans must permit every category of licensed provider to deliver covered services, but no law guarantees any individual a seat in a network. That's why a vendor's persistence with each payer matters more than its zip code. Credentialing companies win files with complete applications and steady follow-up, wherever the office sits.

Medical Credentialing Services Across Washington Cities

The credentialing steps don't change from city to city, but the payer mix, Apple Health plan options, and needs across state lines do. Medical credentialing services in Washington should plan each file around where the practice sits.

Seattle and Bellevue (King County)

AccordPro's Seattle office and Medwave's Seattle service page are the local options on this list. HCA's January 2026 service area matrix lists UnitedHealthcare Community Plan in King County, one of the 15 counties it serves. Premera's CAQH requirement and Kaiser Permanente Washington's WPA requirement apply here, as they do statewide.

Tacoma and Pierce County

MultiCare's credentialing office accepts one WPA for Tacoma General, Mary Bridge Children's, and its other hospitals, so Tacoma physicians don't fill out a new packet for each facility. Pierce County also appears on UnitedHealthcare Community Plan's county list, which adds one more Apple Health file to plan for.

Spokane and Eastern Washington

Spokane groups near the Idaho line often add Idaho Medicaid, and our Idaho Medicaid enrollment guide covers that side. HCA doesn't list Spokane County among the 15 counties for UnitedHealthcare Community Plan, so check plan availability by county before you map enrollments.

Vancouver and Clark County

EZ MD Solutions has its headquarters in Vancouver. Practices that see patients from Portland often need Oregon enrollment too, and our Oregon Medicaid enrollment guide walks through the Oregon Health Plan side. Clark County doesn't appear on UnitedHealthcare Community Plan's county list either.

Everett, Yakima, and the Tri-Cities in Washington

Snohomish County, home to Everett, appears on UnitedHealthcare Community Plan's county list. Benton and Franklin counties, which hold most of the Tri-Cities, don't. For Yakima and any other county, check HCA's matrix before planning Apple Health files, since plan availability changes by county.

FAQs About Medical Credentialing Services in Washington

How much do medical credentialing services in Washington cost?

Published prices run from $99 per payer application at MedSole RCM to $349 per payer, plus a $499 onboarding fee and $50 a month, at White Glove Credentialing. NW Psychological Credentialing sits between them at $167 to $200 per carrier for commercial mental health panels. Three of the 10 companies compared publish a clear price.

A solo provider joining six payers pays $594 at MedSole, compared with $3,193 in year one at White Glove.

How long does credentialing take in Washington?

Most Washington payers publish 45 to 60 days after a complete application, and RCW 48.43.750 requires carriers to decide within 90 days, with an average of 60 or less.

Premera says the majority of files finish within 60 days or less, and Wellpoint Washington cites about 45 days in most cases. Add time for contract loading, since UnitedHealthcare allows up to 60 more days after approval.

Which credentialing companies in Washington also handle medical billing?

Seven of the 10 companies compared offer billing: MedSole RCM, EZ MD Solutions, AccordPro, Credex Healthcare, Practolytics, Physician Practice Specialists, and Medwave.

Of those seven, only MedSole publishes both prices: $99 per payer application for credentialing and 2.99% of collections for billing. White Glove Credentialing routes billing through a sister company that lists 6% to 8% of collections with a $500 monthly minimum.

Is MedSole RCM the most affordable credentialing company in Washington?

On published prices, yes, among the 10 companies compared as of October 2026. MedSole RCM charges $99 per payer application for credentialing and 2.99% of collections for medical billing.

The next published credentialing prices are $167 to $200 per carrier at NW Psychological Credentialing and $349 per payer plus fees at White Glove Credentialing. Seven companies don't publish a clear price, so compare their written quotes against $99.

What is the best medical billing and credentialing company for a Washington practice?

The best fit depends on practice size and payer mix. For a practice that wants both services at published prices, MedSole RCM offers credentialing at $99 per payer and billing at 2.99% of collections, with no setup fee, software fee, or monthly minimum.

Practices that want medical billing experts in Washington with a local office can look at EZ MD Solutions in Vancouver or AccordPro in Seattle, which both quote on request.

Do I need CAQH to get credentialed in Washington?

Yes, for commercial health carriers. CAQH, now operating as DataSpring, has been the credentialing database Washington selected since 2024, and RCW 48.43.750 bars carriers from requiring other application formats outside delegated arrangements. DataSpring is free for clinicians and runs on a 120-day attestation cycle. Grant each plan access to your profile, or the plan can't pull your application.

What is the Washington Practitioner Application?

The Washington Practitioner Application (WPA) is the standard form Washington hospitals and some health plans use for credentialing and privileging. Kaiser Permanente Washington requires the Washington Practitioner Application through CAQH and doesn't accept paper. Hospital systems such as MultiCare accept one WPA across their facilities, so providers don't complete a different packet for each hospital.

Does Washington law set a deadline for credentialing decisions?

Yes. RCW 48.43.750 requires health carriers to approve or deny a complete credentialing application within 90 days, and since June 1, 2020, their decisions must average 60 days or less.

The law doesn't require carriers to approve anyone or add providers to a network. It also doesn't apply to delegated credentialing arrangements, and it gives the Insurance Commissioner no enforcement duty under that section.

Can a Washington provider see insured patients before credentialing is approved?

Yes, but in-network billing depends on the effective date each payer assigns, and Washington law doesn't require payment while a file is pending.

Medicare can allow billing up to 30 days before the effective date when circumstances prevented earlier enrollment. Until a commercial payer confirms the date, practices use self-pay with written notice, hold claims with that risk understood, or request a single case agreement.

Do I need a credentialing company located in Washington?

No, not for payer credentialing, which runs through CAQH and payer portals from anywhere. A local office helps most with onsite hospital privileging. Two of the 10 companies compared, EZ MD Solutions in Vancouver and AccordPro in Seattle, have Washington offices. MedSole RCM serves Washington practices from Mesa, Arizona, at $99 per payer application, with billing at 2.99% of collections.

Getting Credentialed in Washington Without the Wait

Washington gives carriers 90 days once a file is complete, and every carrier pulls that file from CAQH. Most delays trace back to incomplete applications and to files nobody follows up on. Pick medical credentialing services in Washington that fix both.

MedSole files within 48 hours of receiving complete documents and calls every payer weekly. Credentialing costs $99 per payer application, and billing runs at 2.99% of collections when you want one team for both.

Ready to map your Washington payer list? Our credentialing and enrollment service page shows the full process. You can also contact our enrollment team with your provider count and payer list for a quote.

Sources for This Washington Credentialing Guide

Every source below was accessed on October 18, 2026. Company prices, addresses, and quotes come from each company's own website, checked the same day.

Washington law and state programs

• RCW 48.43.750, credentialing deadlines
• RCW 48.165.035, uniform credentialing process
• RCW 48.43.045, provider categories
• Foundation for Health Care Quality, credentialing program
• Foundation for Health Care Quality, CAQH transition FAQ
• Washington health plan transition list, version 7
• HCA bulletin, 2026 application fee
• HCA bulletin, Apple Health revalidations by June 5, 2028
• HCA notice, enrollment support moving to SAW
• HCA Apple Health service area matrix
• HCA 2026 Apple Health plan comparison guide
• DOH application status
• DOH, osteopathic physician licensing
• Washington State Board of Nursing, ARNP title change
• Washington Medical Commission

Federal

• CMS, A/B MAC Jurisdiction F
• Federal Register, CY 2026 application fee notice
• CMS, Medicare enrollment moratoria
• 42 CFR 424.520, effective date of billing privileges
• 42 CFR 424.521, retrospective billing

Payers and platforms

• Premera credentialing manual
• Kaiser Permanente Washington, practitioner credentialing
• Wellpoint Washington, join our network
• Community Health Plan of Washington, join the network
• UnitedHealthcare, join our network
• Cigna credentialing
• DataSpring for clinicians
• DataSpring rebrand announcement, June 7, 2026

Associations and compacts

• MGMA Stat, November 2025
• Interstate Medical Licensure Compact member map, July 2026