About Sunu Thomas, MD

Dr. Sunu Thomas joined the Cardiology Division at the Massachusetts General Hospital in July 2014 specializing in advanced heart failure, cardiac transplantation and mechanical circulatory support.  After completing his medical education and Adult Cardiology training at the University of Toronto, he pursued his interest in advanced heart disease with fellowships at the Brigham and Women's Hospital  and completed a specialized year of training dedicated to mechanical circulatory support therapies at Columbia University Medical Center.  He broadened his expertise in hemodynamics and interventional heart failure therapies with a full interventional cardiology fellowship at Tufts Medical Center. 

At the Massachusetts General Hospital, he is the Medical Director of the Cardiac ECMO program and Co-Director of the Resynchronization and Advanced Cardiac Therapeutics (ReACT) Program.  His primary clinical and research interests focus on the use of mechanical circulatory support strategies as heart replacement therapies in patients with acute and chronic heart failure syndromes.

Clinical Interests:



Mass General Heart Center: Cardiac Catheterization Lab
55 Fruit St.
Boston, MA 02114
Phone: 617-726-7400

Medical Education

  • MD, University of Toronto
  • Residency, University of Toronto
  • Fellowship, Brigham and Women's Hospital
  • Fellowship, Columbia University Medical Center
  • Fellowship, University of Toronto

American Board Certifications

  • Advanced Heart Failure and Transplant Cardiology, American Board of Internal Medicine
  • Cardiovascular 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.

Reviews: Comments and Ratings