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Timothy Mastro, MD, DTM&H

Senior Science Advisor

Dr. Timothy Mastro serves as FHI 360’s senior science advisor, and formerly was chief science officer, responsible for advancing the quality of science across the organization and growing research and evaluation capabilities in both the natural and social sciences.

His work at FHI 360 has included clinical trials; epidemiology; global health research; COVID-19 vaccines and prevention; HIV prevention, care and treatment; tuberculosis; reproductive health; contraceptive technology; nutrition; implementation science; and programs addressing integrated development.

Prior to joining FHI 360 in 2008, Mastro served in scientific leadership positions at the U.S. Centers for Disease Control and Prevention (CDC) for 20 years. His research and work in programs at CDC’s Division of HIV/AIDS Prevention and Global AIDS Program addressed the prevention and treatment of HIV, vaccine trials, sexually transmitted infections and tuberculosis. Mastro first joined the CDC as an epidemic intelligence service (EIS) officer. During 1993 to 2000, he served in Bangkok as director of the Thailand Ministry of Public Health–U.S. CDC Collaboration. Mastro began his international public health career on the Thai-Cambodian border in 1983, where he served as a physician caring for Cambodian refugees and medical coordinator of the United Nations Border Relief Operation through 1985.

Mastro has a bachelor’s degree from Colgate University and a Doctor of Medicine from Saint Louis University. He trained in internal medicine at New York City’s Metropolitan Hospital and Mount Sinai School of Medicine. He studied at the London School of Hygiene & Tropical Medicine and received a diploma in tropical medicine and hygiene from the Royal College of Physicians of London. Mastro is certified by the American Board of Internal Medicine, a fellow of the American College of Physicians and a member of the American Epidemiological Society. He is also an adjunct professor of epidemiology in the Gillings School of Global Public Health, University of North Carolina at Chapel Hill. Mastro received numerous awards at the CDC and is the author or co-author of more than 200 published articles and book chapters.