Tracy Lieu, M.D., M.P.H., is Director of the Division of Research, Kaiser Permanente Northern California. She leads a department of 60+ faculty-level research scientists and 600+ staff whose mission is to transform health through research on the causes of disease and the best ways to deliver care for Kaiser Permanente members and for society. She guides leaders of large programs in delivery science, predictive analytics, genomic research, and clinical trials. 

Nationally, Dr. Lieu has served on the U.S. Preventive Services Task Force and the Advisory Committee on Immunization Practices, and as chair of the NIH Health Services Organization and Delivery study section. She has also chaired and served on committees for the National Academy of Science, Engineering, and Medicine. Before her current role, she was the founding director of the Center for Healthcare Research in Pediatrics and a professor in the Department of Population Medicine at Harvard Pilgrim Health Care and Harvard Medical School. 

Dr. Lieu is a practicing pediatrician who has led nationally recognized work in health care delivery for vaccines and childhood asthma. She is a professor in the Kaiser Permanente Bernard J. Tyson School of Medicine and an adjunct professor in the University of California, San Francisco School of Medicine. Dr. Lieu was elected to the National Academy of Medicine for her research in decision sciences and economic evaluation in health.