Tyler B. Evans, MD, MS, MPH, DTM&H, FIDSA is an infectious diseases & addiction medicine public health physician, associate professor, humanitarian and leader, whose career has been defined by service to the world’s most historically marginalized communities. He is the CEO, chair, and co-founder of Wellness Equity Alliance (WEA), a national public health organization dedicated to advancing health equity in the United States and abroad.

Dr. Evans has held senior leadership roles across government and nonprofit sectors, including Chief Medical Officer (CMO) and Medical Director posts at community health centers serving people experiencing homelessness, substance use disorders, and migrant populations; as well as Public Health Officer positions in multiple public health departments. He served as the national director of infectious diseases for the AIDS HealthCare Foundation (AHF) - the largest community-based AIDS-service organization in the US.

During the COVID-19 pandemic, he served as first CMO for New York City (based at the Office of Emergency Management), helping lead clinical operations during the first surge, and later oversaw the vaccination initiative at Marin County Health and Human Services (where he also served as one of the lead operational advisors to the Association of Bay Area Health Officials). As CEO/CMO of Curative Medical Associates, he partnered in the nationwide administration of more than 2 million COVID-19 vaccines across 10 states.

Trained in tropical medicine, infectious diseases, addiction medicine, internal and preventive medicine, Dr. Evans has worked extensively with underserved populations both domestically and internationally. His experience spans street medicine, refugee and asylee health, HIV/AIDS, hepatitis C, tuberculosis, neglected tropical diseases, and transgender health. He has served with organizations such as Médecins Sans Frontières (Doctors Without Borders) and Partners in Health, working in war zones and complex humanitarian and public health emergencies (including two major ebola responses). He is erudite in tribal health, as he previously served with the Indian Health Service (IHS). He was the founder of the New York City Refugee and Asylee Health Coalition.

Dr. Evans is an adjunct associate professor in population & public health sciences at the University of Southern California (USC) Keck School of Medicine. He has served on several boards (including the HIV Medicine Association, HIVMA) and is well published. He is a fellow at the Infectious Diseases Society of America (IDSA).

His debut book, "Pandemics, Poverty, and Politics: Decoding the Social and Political Drivers of Pandemics from Plague to COVID-19", draws on lived experience at the front lines of global and domestic health crises. Blending moral clarity with scientific expertise, Dr. Evans unravels how inequality, misinformation, and politics fuel pandemics—and makes a compelling case for justice-driven, equity-based approaches to public health.