Alfredo Vergara, Ph.D., is a senior public health executive with 30 years of experience in program implementation, with 22 of those years at the U.S. Centers for Disease Control and Prevention (CDC). Now, Dr. Vergara is the director of the Public Health Division within the City of Portland's Department of Health and Human Services where he oversees more than 50 employees who provide clinical and public health services, chronic disease prevention, and substance use and overdose prevention services to the population of greater Portland, Maine.

Previously, he served as the director of the CDC’s office in Maputo, Mozambique, where he oversaw more than 100 employees and a budget of $180 million (USD) per year involving HIV, tuberculosis, malaria, and global health preparedness activities. During the six years in this role, he grew and improved the CDC program to control the HIV epidemic in collaboration with Mozambique’s Ministry of Health.

Dr. Vergara is fluent in English, Spanish, and Portuguese. He received his doctorate in environmental and occupational health epidemiology, master’s in preventive medicine and environmental health, and bachelor’s in biomedical engineering all from the University of Iowa.