AFH Clearinghouse
Learn about Adult Family Home (AFH) Clearinghouse and It’s Services
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Clinical Practice Guidelines Update
CHPW guidelines for chronic diseases (including medical and behavioral health conditions) and for preventive services.
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Taxonomy Requirement for Ambulatory Surgery Center (ASC) Claims
Clarification for submitting Ambulatory Surgery Center (ASC) claims in ProviderOne (P1)
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Provider Newsletter
Read the latest updates and resources for providers and staff from Community Health Plan of Washington.
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Core Provider Agreement and NPI Status
Follow these guidelines for your encounters and claims to be accepted for processing by CHPW
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2026 Formulary, Criteria and Policy Changes
Changes to the Apple Health Preferred Drug List (AHPDL) for CHPW Medicaid members effective 04/01/26, unless otherwise noted in this page.
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Pediatric Lead Testing
DOH is lowering the state blood lead action level to better protect children from the harms of lead.
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Electronic Remittance Advice Enrollment Process
CHPW uses Availity for our Electronic Remittance Advice (ERA; claim payment details), or 835, transactions.
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Washington state expands same-day support for opioid use disorder
Telebupe Hotline brings rapid, low-barrier care to people statewide
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Updated Alternative Treatments Billing Guideline for CS Plans
Updated Alternative Treatments Billing Guideline for Individual & Family Cascade Select Plans
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Intensive Residential Treatment (IRT)
Billing tips for Intensive Residential Treatment (IRT)
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Admit Dates for Outpatient Services
Reminders about admission (“admit”) dates for outpatient services on a professional claim
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Access to Care Standards
Timely access to adequate and appropriate care based on approved accessibility standards for members
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Detailed Itemizations for Claims Over $100,000
All providers need to submit detailed itemizations for all claims with billed charges exceeding $100,000
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Vaccines for Children (VFC) Billing
The guidelines when billing for the Vaccines for Children (VFC) Program
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Youth and Young Adult Substance Use Treatment Webpage
A web page for youth and young adult substance use treatment information is now live
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Electronic Funds Transfers (EFT)
CHPW is pleased to offer two options to sign up for or update EFT
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New Medicare Benefit for 2026
New benefit for eligible Medicare Advantage Dual Complete (HMO D-SNP) members in 2026
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HealthMAPS Portal Enhancements
CHPW is enhancing its provider portal in October 2025 to include access to remittances and claims letters.
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Sterilization & Hysterectomy Forms
Consent Forms are Required for Sterilization and Hysterectomy
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- CUSTOMER SERVICE
- 1-800-440-1561
- (TTY:711)
- [email protected]
- NURSE ADVICE LINE
- (CHPW Members)
- 1-866-418-2920
- (TTY:711)
- CASE MANAGEMENT
TECHNICAL ASSISTANCE - (CHPW Members & Providers)
- 1-866-418-7004
- (TTY:711)
- HOURS
- 8:00 a.m. to 5:00 p.m.
- Monday through Friday
- ADDRESS
- 1111 Third Ave
- Suite 400
- Seattle, WA 98101
QUICK LINKS
- MEMBERS
- Benefits+
- Print Member Card
- myCHPW Portal
- Plan & Coverage
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- PLANS
- Apple Health (Medicaid)
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- OTHER
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- Contact Us
Community Health Plan of Washington (CHPW) was founded in 1992 by Washington’s community health centers. CHPW is committed to Washington's health. To enroll in a Community Health Plan of Washington Apple Health (Medicaid), Medicare Advantage, or Individual & Family Cascade Select plans, you must be eligible and live in the service areas. This is not a complete description of benefit. Please contact us for more information.
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Language assistance services, including interpreters and translation of printed materials, are available free of charge.
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