Washington’s Apple Health program serves over 2 million beneficiaries through five managed care organizations under its Integrated Managed Care (IMC) model that combines physical health, behavioral health, and substance use disorder treatment under a single MCO contract.
What Is the Washington ProviderOne Portal?
ProviderOne is the centralized, secure provider portal operated by the Washington State Health Care Authority (HCA) for all Medicaid enrollments, credentials verification, revalidations, and claims billing.
All healthcare providers must register centrally in ProviderOne to participate in Washington's Medicaid program, known as Apple Health, whether billing fee-for-service or managed care.
Step-by-Step Apple Health Enrollment
Register on ProviderOne
Create account with NPI, Tax ID, WA license. ProviderOne uses a domain-based access model.
Complete Application
Demographics, WA license, specialties, locations, ownership disclosures, billing config.
Upload Documents
WA license, NPI, W-9, EIN, liability insurance, DEA, voided check, ownership forms.
Complete Screening
OIG/SAM, WA DOH verification, WSP background for high-risk, site visits for facilities.
Submit
Processing: 30–45 days.
Credential with Apple Health MCOs
After ProviderOne approval, credential with regional MCOs.
Apple Health: Washington's Managed Care System
Washington coordinates physical and behavioral health services through the Apple Health managed care program, contracting with five primary Managed Care Organizations (MCOs):
| Managed Care Plan | Parent Company | Key Details |
|---|---|---|
| Molina Healthcare of Washington | Molina Healthcare | Statewide; holds the largest Medicaid market share. |
| Community Health Plan of Washington (CHPW) | Local Community Health Ctrs | Statewide; non-profit plan integrated with local CHCs. |
| Coordinated Care | Centene Corporation | Statewide coverage; specializes in youth and foster care benefits. |
| UnitedHealthcare Community Plan | UnitedHealth Group | Statewide; comprehensive provider networks. |
| Wellpoint Washington | Elevance Health | Statewide coverage; focusing on integrated physical and behavioral health. |
✔ B2B Strategy: Once active in ProviderOne, providers must contract separately with individual Apple Health MCOs. Molina and CHPW represent the largest community-based patient panels and should be prioritized for local outreach.
Integrated Managed Care
Washington fully integrated physical health, behavioral health, and SUD treatment under MCO contracts statewide.
- One MCO credential covers physical, BH, and SUD services
- No separate BH carve-out enrollment
- MCOs manage full continuum of care
✔ Advantage: WA’s IMC model means one MCO credential = full service coverage. No separate BH enrollment needed. Prioritize Molina (broadest regional coverage) first.
Frequently Asked Questions
How long does WA enrollment take?
ProviderOne: 30–45 days. MCO: 30–60 days. Total: 60–105 days.
Does WA integrate behavioral health?
Yes. Full IMC model — physical, BH, SUD under single MCO contract.
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