WA SB5258

Health Care Authority and Department of Social and Health Services must collaborate to identify individuals enrolled in income-based Medicaid who have moved out of state, using data from other programs like food stamps and input from frontline caseworkers

Authority must work with federal Social Security Administration and CMS to clarify procedures for identifying clients no longer eligible due to out-of-state residency; if no federal guidance is received, the state auditor will provide recommendations

Beginning January 1, 2026, managed care organization contracts must allow state recovery of premiums for enrollees who moved out of Washington and require multi-state MCOs to analyze enrollment monthly to identify concurrent enrollment in multiple state Medicaid programs

Annual reports required starting January 1, 2027 detailing premiums recovered and number of individuals identified with concurrent enrollment; state auditor must conduct a performance audit by December 31, 2031

Authority and department must annually check Medicaid client addresses against the USPS National Change of Address database and ensure all mailed notices include "address service requested"