Jeah (Kyoungrae) Jung, Ph.D., M.P.H., is a health services researcher who is an Associate Professor in the Department of Health Policy and Administration at the Pennsylvania State University, College of Health and Human Development. She has over 10 years of experience with Medicare claims data. Using varied Medicare data sets, she has led or co-authored several papers that examined quality of care or health outcomes among Medicare beneficiaries, and provider incentives responding to changes in Medicare policies or market environments. Dr. Jung has been analyzing Medicare Part D data, including Prescription Drug Event data and Part D plan characteristic files, to assess the relation between Part D plan benefits and prescription drug use among Medicare Part D enrollees. She uses econometric approaches in her analysis of Medicare data.