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Washington - Housing Stabilization — Licensing, Medicaid Enrollment and Startup Requirements

Last reviewed: 2026-09-10

Washington funds tenancy support services through the Foundational Community Supports (FCS) program under the state's Section 1115 Medicaid Transformation Project (MTP) waiver. The Washington State Health Care Authority (HCA) oversees this benefit, which provides targeted Supportive Housing services to Medicaid beneficiaries with assessed health needs, including mental health conditions and substance use disorders.

Approval requires organizations to pass a network-need review based on regional service gaps and secure an active contract with Washington's designated third-party administrator, Wellpoint. Providers cannot simply enroll in Medicaid and begin billing; they must submit an inquiry form through the HCA support portal and be selected to advance to the contracting phase.

1. Service Definition and Scope

FCS Supportive Housing helps vulnerable Medicaid beneficiaries find and maintain stable community housing. The service is designed to promote self-sufficiency and recovery by addressing housing instability as a social determinant of health.

The program strictly covers support services and does not function as a rental subsidy program. Providers assist with housing searches, landlord mediation, and retention planning, but cannot use FCS funds for direct financial assistance.

2. Regulatory and Oversight Agencies

The Washington State Health Care Authority (HCA) serves as the lead agency for the Medicaid Transformation Project and directly oversees the FCS program. HCA manages provider fidelity reviews and overall program policy.

HCA contracts with a third-party administrator to manage the provider network and process claims. The Department of Social and Health Services (DSHS) also plays a role in determining eligibility for individuals receiving long-term care services.

3. Gatekeeping Prerequisites: Who Can Even Apply

Washington tightly controls the FCS provider network based on regional demand and service gaps. Providers cannot bypass this process by enrolling directly in the state's MMIS; they must be explicitly selected by HCA and the TPA.

Organizations must submit an initial inquiry and wait for authorization to proceed to the application phase. If the state determines there is no current need for additional providers in a specific region, the inquiry is denied.

4. Licensure and Certification Requirements

Washington does not issue a distinct facility or agency license specifically for FCS Supportive Housing. Instead, providers are certified through the HCA approval process and must adhere to strict evidence-based practice standards.

Once approved, providers are subject to ongoing programmatic oversight to ensure they are delivering services according to established national models for supportive housing.

5. Medicaid Provider Enrollment

Before executing a contract with Wellpoint, agencies must be enrolled as Medicaid providers in Washington's Medicaid Management Information System. This ensures they are authorized to provide Medicaid services in the state.

Active enrollment in the state system is also required for staff to verify client eligibility and track Recipient Aid Category (RAC) assignments prior to delivering services.

6. Staffing, Training and Background Checks

While specific degree requirements for FCS staff are not rigidly defined in the waiver, agencies must train staff to deliver services according to SAMHSA PSH fidelity standards. Staff must also be trained in proper documentation compliance.

Because Medicaid eligibility can fluctuate, all staff delivering services must be trained to navigate state systems to verify client status.

7. Documentation, Policies and Records

HCA requires detailed progress notes to substantiate claims, though it does not mandate a specific state form. The FCS training team strongly recommends using structured clinical note formats.

Documentation must clearly link the daily encounter to the individual's formal housing support plan and demonstrate the medical necessity of the intervention.

8. Billing, Rates and Claims

FCS claims are not billed directly to HCA through ProviderOne; they are submitted to the TPA, Wellpoint. Providers must navigate specific timelines for new enrollments to avoid claim denials.

Providers must closely monitor client eligibility, as changes to a client's aid category can result in rejected claims that require manual intervention.

9. Approval Sequence and Timeline

The approval process is phased, beginning with an inquiry to assess network need. Only approved inquiries move forward to full application and contracting with the TPA.

Providers should expect the process to take several months, as it requires coordination between HCA's network review team, ProviderOne enrollment, and Wellpoint contracting.

10. Common Denials and Survey Findings

Providers frequently face administrative claim denials related to Medicaid eligibility lapses or premature billing. Programmatic reviews focus heavily on adherence to fidelity standards.

During fidelity reviews, HCA evaluates whether agencies are truly implementing evidence-based practices or merely providing generic case management.

11. Key Contacts and Resources

Providers must utilize resources from both HCA and Wellpoint to manage their FCS enrollment, billing, and fidelity reviews.

The HCA support portal and the Wellpoint provider website are the primary hubs for forms, billing guides, and policy updates.

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