Lindsey Leininger is a senior health researcher at Mathematica Policy Research, where she leads quantitative studies informing health insurance design for vulnerable populations. Leininger’s work uses data from both population-based surveys and administrative data systems to study a variety of policy contexts, including eligibility reform, delivery system reform, risk stratification efforts, and quality measurement. Her clients include both state and federal agencies and she particularly enjoys technical assistance efforts that disseminate empirical insights to these audiences. She also enjoys working with policymakers to identify and shape research questions that are directly relevant to their operational needs. Before joining Mathematica in 2015, Leininger held research and faculty positions at Chapin Hall at the University of Chicago and the University of Illinois-Chicago, respectively. During this time she spent seven years as a core investigator evaluating eligibility and delivery system reforms within the Wisconsin Medicaid program, work initiated during her tenure as a Robert Wood Johnson Health and Society Scholar at the University of Wisconsin-Madison. She holds a Ph.D. in public policy studies from the University of Chicago.