Dr. Timothy Mastro serves as FHI 360’s 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.

In his previous role as FHI 360’s Director of Global Health, Population and Nutrition, Dr. Mastro oversaw global research and technical work across a broad range of health, population and nutrition areas. Activities under his direction included global health research, global health programs, program sciences and technical support, nutrition and food security, contraceptive technology innovation and science facilitation.

Prior to joining FHI 360 in 2008, Dr. Mastro served in scientific leadership positions at the 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, sexually transmitted infections and tuberculosis. Dr. Mastro first joined CDC as an Epidemic Intelligence Service (EIS) officer. From 1993 to 2000, he served in Bangkok as director of the CDC-Thai Ministry of Public Health HIV/AIDS Collaboration. Dr. Mastro began his international public health career on the Thai-Cambodian border in 1983, where he served as a physician and medical coordinator of the United Nations Border Relief Operation through 1985.

Dr. Mastro has a bachelor’s degree in biology 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.