Waiver Consulting Group — Start any program. In any state.

Washington - Assisted Living Facility — Licensing, Medicaid Enrollment and Startup Requirements

Last reviewed: 2026-09-10

The Washington State Department of Social and Health Services (DSHS), Aging and Long-Term Support Administration (ALTSA) licenses Assisted Living Facilities under WAC 388-78A and contracts for Medicaid services through the Community First Choice (CFC) state plan and 1915(c) waivers like COPES. Facilities provide housing, meals, and personal care to seven or more residents, with Medicaid reimbursement requiring a specific Adult Residential Care (ARC), Enhanced Adult Residential Care (EARC), or Assisted Living (AL) contract.

Approval requires securing a state facility license from the Residential Care Services (RCS) division before a Medicaid contract application is accepted. Applicants must pass a physical plant inspection, complete required administrator training, and enroll as a billing provider through the Washington Health Care Authority's ProviderOne system.

1. Service Definition and Scope

In Washington, an Assisted Living Facility (ALF) provides room, board, and assistance with activities of daily living (ADLs) for seven or more residents. Under Medicaid, ALFs operate under three distinct contract types: Adult Residential Care (ARC), Enhanced Adult Residential Care (EARC), and Assisted Living (AL) services, each offering varying levels of personal care and medication administration.

These services are funded through the Community First Choice (CFC) state plan option and 1915(c) waivers. Facilities may also obtain specialty designations to serve individuals with developmental disabilities, mental illness, or dementia.

2. Regulatory and Oversight Agencies

DSHS ALTSA is the primary regulatory body for ALFs in Washington, handling both licensure and Medicaid contracting. The Residential Care Services (RCS) division within ALTSA conducts inspections and issues licenses.

The Washington State Health Care Authority (HCA) manages the Medicaid program and oversees the ProviderOne billing system.

3. Gatekeeping Prerequisites: Who Can Even Apply

Washington does not require a Certificate of Need (CON) or a Request for Proposals (RFP) procurement to open an Assisted Living Facility. The market is open to any qualified applicant who can meet the physical plant and operational standards.

However, a facility must obtain an active ALF license from DSHS Residential Care Services before applying for a Medicaid contract. Medicaid enrollment is strictly contingent on holding this license and passing the initial physical plant inspection.

4. Licensure and Certification Requirements

ALF licensure requires submitting a detailed application to the DSHS Business Analysis and Applications Unit (BAAU). The process includes a review of policies, procedures, and the facility's physical environment.

Facilities must comply with WAC 388-78A for general operations and WAC 388-110 for Medicaid-specific physical requirements, such as private rooms and accessible bathrooms for the AL contract tier.

5. Medicaid Provider Enrollment

After obtaining a license and a DSHS Medicaid contract, ALFs must enroll as a billing provider with the Washington Health Care Authority (HCA). This is done through the ProviderOne system.

Facilities enroll as a Fac/Agncy/Orgn/Inst provider type and must sign a Core Provider Agreement with HCA to bill for services.

6. Staffing, Training and Background Checks

Washington requires extensive training for ALF staff, overseen by DSHS. Direct care workers must complete a 75-hour training program and obtain Home Care Aide certification from the Department of Health.

Administrators and designees must complete specific specialty training if the facility serves populations with developmental disabilities, mental illness, or dementia.

7. Documentation, Policies and Records

ALFs must maintain comprehensive records in accordance with WAC 388-78A. This includes negotiated service agreements for each resident, detailing their assessed needs and the services provided.

Facilities must also maintain policies on resident rights, emergency preparedness, and medication management, ensuring compliance with the federal Home and Community-Based Services (HCBS) settings rule.

8. Billing, Rates and Claims

ALFs bill for Medicaid services through the HCA ProviderOne system. Reimbursement rates are established by DSHS and vary based on the client's assessed classification group in the CARE assessment tool.

Washington strictly prohibits supplementation; facilities cannot charge Medicaid clients additional fees for services covered under the daily Medicaid rate.

9. Approval Sequence and Timeline

The approval process begins with the physical plant review and ALF licensure application to DSHS BAAU. Once licensed, the facility applies for a Medicaid contract (ARC, EARC, or AL) through ALTSA.

After the contract is awarded, the final step is enrolling in ProviderOne with HCA. The entire process can take several months, heavily dependent on construction reviews and inspection scheduling.

10. Common Denials and Survey Findings

DSHS Residential Care Services conducts regular surveys to ensure compliance. Common citations involve medication administration errors and failure to update negotiated service agreements.

Licensure or contract applications may be delayed or denied if the physical plant does not meet the specific WAC 388-110 requirements for the requested contract tier, such as lacking private bathrooms for AL contracts.

11. Key Contacts and Resources

Providers should utilize DSHS and HCA resources for guidance throughout the licensure and enrollment process. The ALTSA website provides comprehensive manuals and forms.

The HCA Provider Enrollment team offers support for the ProviderOne system, and CareLearn Washington manages training requirements.


See all Washington services · Washington Medicaid consulting · book a consultation.