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James S. Guseh, II, MD

James S. Guseh, II, MD
  • Cardiologist
    Massachusetts General Hospital
  • Director
    Cardiovascular Performance Program

Instructor in Medicine
Harvard Medical School

Massachusetts General Hospital
Simches Research Building, Room 3.190
185 Cambridge Street
Boston, MA 02114


Dr. James “Sawalla” Guseh’s lab focuses on understanding the molecular basis of human aerobic fitness. Dr. Guseh has received research support from various organizations including the American Heart Association, the Harold Amos Medical Faculty Development Program, the Mass General Physician Scientist Development Program, and the Fred and Ines Yeatts Fund for Innovative Research. Dr. Guseh is also an NIH/Harvard KL2 faculty scholar, a Frisbie Family Scholar, and a previous Sanchez-Ferguson Scholar.
Dr. Sawalla Guseh received his undergraduate degree in Biochemical Sciences at Harvard College and continued his education at Harvard Medical School. He trained at MGH in internal medicine, cardiology, and sports cardiology fellowship, also serving as a chief medical resident. Dr. Guseh has received several awards for his work, including the 2015 Roman W. DeSanctis Clinical Scholar Award, the 2017 American Heart Association’s Laennec Young Clinician Award, and the 2021 Excellence in Clinical Education Award from the MGH Cardiovascular Disease Fellows. He also served as Director of the Cardiovascular Performance Fellowship Program and team cardiologist for several local professional teams. In 2023 he was appointed as the Director of MGH’s Cardiovascular Performance Program.

Research Areas
Cardiac Physiology and Disease

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