Menu Close
Clinician-Scientist, St. Michael’s Hospital; Associate Professor, Faculty of Medicine, University of Toronto

Darrell H. S. Tan is an infectious diseases physician and Clinician-Scientist at St. Michael’s Hospital, where he leads the Options Collaboratory in HIV/STI Treatment and Prevention Science ( He is also an Associate Professor in the Department of Medicine and Institute of Health Policy, Management and Evaluation at the University of Toronto. His research focuses on clinical trials and implementation science in the areas of HIV prevention and treatment, sexually transmitted infections (STIs), and COVID-19. Dr. Tan holds a Tier 2 Canada Research Chair in HIV Prevention and STIs, is Co-Lead of the HIV Prevention Core of the CIHR Canadian HIV Trials Network and is a member of the Governing Council of the International AIDS Society.


  • 2011–present
    Clinician-Scientist, St. Michael's Hospital