About Mark Siedner, MD, MPH

Mark Siedner is an infectious disease clinician and researcher in the Division of Infectious Diseases at Massachusetts General Hospital. His clinical work focuses on clinical infectious disease care both at Mass General and also as an HIV care provider in southwestern Uganda. He also contributes a significant portion of his time to research, largely focused in southwestern Uganda with the Massachusetts General Hospital Center for Global Health, where he pursues studies aimed at mitigating the causes of morbidity and mortality among people living with HIV in low and middle-income countries

Departments, Centers, & Programs:



Medical Practice Evaluation Center
100 Cambridge St., Suite 1600
Boston, MA 02114
Phone: 617-726-4686
Fax: 617-726-4120

Primary Care Urgent Access Center
15 Parkman Street
Boston, MA 02114-3117
Phone: 617-726-2707

Medical Education

  • MPH, Johns Hopkins Bloomberg School of Public Health
  • MD, Johns Hopkins University School of Medicine
  • Residency, Columbia University Medical Center
  • Fellowship, Massachusetts General Hospital

American Board Certifications

  • Internal Medicine, American Board of Internal Medicine
  • Infectious Disease, American Board of Internal Medicine

Accepted Insurance Plans

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.


Dr. Siedner's primary research activities include 1) directing clinical trials to evaluate mobile-health based interventions to address structural barriers to care, including transportation costs and poor communication systems and 2) directing a longitudinal cohort study of aging HIV infected persons and age  and gender-matched HIV uninfected controls to understand the intersection between HIV infection and non-communicable disease risk in rural Uganda.