About Masaki Funamoto, MD, PhD

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, specializes in mechanical circulatory support and Heart/Lung transplant and serves as the surgical director of ECMO program. 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

Clinical Interests:




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

Medical Education

  • MD, Kyoto University Faculty of Medicine
  • PhD, 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

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. 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