Dr. Chen is an Assistant Professor in the Department of Internal Medicine, Division of General Medicine. Her clinical area of expertise is hospital medicine. Her current research focuses on evaluating payment and delivery system reforms that aim to increase value in health care. She is currently serving as Senior Adviser to the Deputy Assistant Secretary for Health Policy at the US Department of Health and Human Services in Washington, DC. Dr. Chen was a practicing hospitalist who conducted health services and health policy research, primarily using claims and registry data. Her research focused on the quality and costs of inpatient medical care, with her longitudinal research agenda focused on improving the efficiency of hospital-based care.