Masaki Funamoto, MD, PhD, is a cardiac surgeon at Massachusetts General Hospital. He is a member of the Mass General Corrigan Minehan Heart Center and the Mass General Transplant Center, and specializes in mechanical circulatory support and Heart/Lung transplant.


Cardiac Surgery


Centers & Specialties

Heart Center

Transplant Center

Clinical Interests
  • Cardiac (heart) surgery
  • Heart failure
  • Ventricular assist devices
  • Heart transplant
  • Lung transplant
  • Extracorporeal Membrane Oxygenation (ECMO)
Medical Education
  • PhD, Kyoto University
  • MD, Kyoto University Graduate School of Medicine
  • Residency, Akane Foundation Tsuchiya General Hospital|Residency, Kyoto University Hospital
  • Fellowship, Brigham and Women's Hospital|Fellowship, Kyoto University Hospital|Fellowship, Massachusetts General Hospital
Foreign Languages
  • Japanese
Insurances Accepted
  • Aetna Health Inc.
  • AllWays Health (NHP) - ACD
  • AllWays Health (NHP) - PBO
  • Beech Street
  • Blue Cross Blue Shield - Blue Care 65
  • Blue Cross Blue Shield - Indemnity
  • Blue Cross Blue Shield - Managed Care
  • Blue Cross Blue Shield - Partners Plus
  • BMC HealthNet Mass Health MCO/ACO
  • Cigna (PAL #'s)
  • Commonwealth Care Alliance
  • Fallon Community HealthCare
  • Great-West Healthcare (formally One Health Plan)
  • Harvard Pilgrim Health Plan - ACD
  • Harvard Pilgrim Health Plan - PBO
  • Health Care Value Management (HCVM)
  • Humana/Choice Care PPO
  • Maine Community Health Options (MCHO)
  • MassHealth
  • Medicare
  • Medicare - ACD
  • OSW - Connecticut
  • OSW - Maine
  • OSW - Vermont
  • Private Health Care Systems (PHCS)
  • Railroad Medicare
  • Railroad Medicare - ACD
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Unicare
  • United Healthcare (non-HMO) - ACD
  • United Healthcare (non-HMO) - PBO

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

Patient Age Group
Provider Gender


Masaki Funamoto, MD, PhD is an attending surgeon at Massachusetts General Hospital, and a member of the Mass General Corrigan Minehan Heart Center and the Mass General Transplant Center. He is an Instructor of Surgery at Harvard Medical School as of July 1, 2018.

Dr. Funamoto graduated and received his medical degree from Kyoto University. After the completion of his residencies in General Surgery and Cardiovascular Surgery at Kyoto University Hospital and its affiliated hospitals in Japan, he pursued advanced cardiac surgery fellowships at Massachusetts General Hospital and Brigham and Women’s Hospital, specializing in heart failure surgery, mechanical circulatory support, and heart and lung transplantation in addition to all aspects of cardiac surgery training.

 Dr. Funamoto has focused his clinical interests on surgical treatments of end stage heart and lung failure including mechanical assistance, heart and lung transplantation. He has extensive experiences with surgical management of acute and chronic mechanical circulatory support devices

Research & Publications

Research Summary

Dr. Funamoto's research interests include clinical outcomes of various type of mechanical circularotry supports, heart/lung transplantation, and effective utilization and preservation of donor organ

Research Interests: Extracorporeal Membrane Oxygenation (ECMO); Ventricular Assist Device; Cardiac; Heart transplantation; Lung transplantation; ex vivo organ preservation


View my most recent publications at PubMed


Cardiac Surgery
55 Fruit Street
Boston, MA 02114-2696
Phone: 617-724-0800