Hilary Marston, M.D., M.P.H., Chief Medical Officer, FDA, serves as the primary clinical advisor to the Commissioner and oversees the Office of the Chief Medical Officer. She leads cross-cutting initiatives that support the FDA’s centers in making effective, safe, and innovative medical products available for patients. Dr. Marston previously served as the Senior Advisor for Global COVID-19 Response on the White House COVID-19 Response Team. Her previous roles also include Director for Medical Biopreparedness and Response at the U.S. National Security Council and Medical Officer and Policy Advisor for Pandemic Preparedness at the National Institute of Allergy and Infectious Diseases, National Institutes of Health. Dr. Marston also served in positions with McKinsey & Company and the Bill & Melinda Gates Foundation. Dr. Marston trained in Internal Medicine and Global Health Equity at Brigham & Women's Hospital. She completed her M.P.H. at the Harvard T.H. Chan School of Public Health.