Medicaid community reinvestment requirements enable states to require or incentivize state contractors to reinvest in the communities they serve. State laws, waivers, and contracts that include community reinvestment provisions have specified reinvestments (using percentage of profits and/or performance measures) in community initiatives that align with the state’s key priorities, e.g., improving healthy food access. On January 14, 2025, the UCSF Social Interventions Research & Evaluation Network (SIREN) and the Center for Health Law & Policy Innovation of Harvard Law School hosted a webinar to learn more about these innovative approaches and planned evaluations from state Medicaid leaders and other population health research experts. The target audience for this webinar includes health care providers, social care providers, health policy practitioners, policymakers, and researchers.