Apple Health (Washington State Medicaid)
Also covers / subsidiaries: Washington Apple Health, WA Medicaid, ProviderOne, Washington HCA
Core Payer & Clearinghouse Profile
Electronic Payer ID
WAMK0
Apple Health FFS claims go through the state's ProviderOne system, not a standard commercial EDI payer ID. Managed-care plans each have their own IDs. (Washington)
Timely Filing Limit (TFL)
Varies — confirm via portal / clearinghouse
Appeal Window
Varies — confirm via portal / clearinghouse
Clearinghouse Gateway
ProviderOne (state Medicaid claims system)
Provider Services
800-562-3022
Claims Fax
Varies — confirm via portal / clearinghouse
Claims Address
Varies — confirm via portal / clearinghouse
Provider Portal
https://www.waproviderone.com
Washington State's Medicaid program, administered by the Health Care Authority (HCA) via ProviderOne. Most enrollees are in managed-care plans.
National EDI Clearinghouse Capabilities
Direct ANSI X12 electronic transaction support verified for Apple Health (Washington State Medicaid).
Resolution Tools for Apple Health (Washington State Medicaid) Claims
Values vary by plan, line of business, and provider agreement. Confirm in the payer portal or with your clearinghouse gateway before submitting electronic claims.
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