The Long Arc of Substance Use Policy Innovation in Medicaid: Looking Back, Looking Forward.

Policy Points The role of Medicaid in financing, organizing, and delivering substance use disorder (SUD) treatment has grown tremendously over time owing to expansions of eligibility and a push toward more uniformity in benefits. Current innovations in SUD treatment focus on expanding the delivery system to create a comprehensive continuum of care, using more value-based payment to reward quality care, and integrating SUD treatment with other systems (e.g., housing, employment, and the criminal legal system). Many of the promising innovations in delivery have not yet been rigorously studied, and implementation of effective models is often stymied because of the lack of flexibility in program requirements and variation in needs and resources across communities. Although policymakers can justifiably laud the great strides Medicaid has made in raising the standards for SUD treatment, there is a huge remaining gap in access to services amidst an unprecedented overdose crisis and looming turmoil in the program.