Her research addresses the problems that lead to inadequate access to health care as well as inferior care quality for traditionally vulnerable populations, including the elderly and individuals with mental illness. She has extensive experience in developing utilization, performance, and quality measures from administrative health care data; analyzing health care systems, with the objective to inform policy and creating incentives to improve health care quality and access. She focuses on the conditions that have the largest burden of disease and societal costs, such as mental illness and addiction. She is experienced in working with large administrative data from Medicare, Medicaid, commercial health plans, and national longitudinal surveys.