Medicaid Waivers to Address Homelessness: Political Development and Policy Trajectories.

This article reviews the role of Medicaid Waivers in homeless policy, and their emerging role as a mechanism to address homelessness. We evaluate the political development of Waivers in housing and homeless policy over the past thirty years, and investigate the status of current and approved Waivers targeting homelessness. We then consider how Waivers may shape homeless policy governance going forward, including the success of existing systems, and ethical questions related to the role of healthcare payers in solutions to homelessness. We find that the scope of Medicaid Waivers to address homelessness has always been present, but significantly expanded post Affordable Care Act (ACA) and more notably following the COVID-19 pandemic. These expansions brought new opportunities for states to fund responses to homelessness through Medicaid social determinants of health (SDoH) provisions providing wrap-around medical services for populations at-risk of or experiencing homelessness, and now through time-limited direct housing costs paired with essential medical services. Over one third of states have an 1115 Waiver specifically targeting homelessness, with nearly one in five states including provisions that cover direct housing costs (e.g., rent). Going forward, Medicaid's involvement in homeless policy has the potential to reshape state and local responses to homelessness.