About Justin Gainor, MD

Treats:

Locations

Mass General Cancer Center: Thoracic Oncology
55 Fruit St.
Boston, MA 02114
Phone: 877-726-5130

Medical Education

  • MD, Harvard Medical School
  • Residency, Massachusetts General Hospital
  • Fellowship, Brigham and Women's Hospital

American Board Certifications

  • Medical Oncology, American Board of Internal Medicine

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

4.9out of 5(87 Ratings, 29 Comments)

May 2025

Dr. Gainor is brilliant. He's been kind and knowledgeable for each one of my treatments. I love the care on deck and that includes everybody at Mass General.


May 2025

Dr Gainor listens and he cares explains things that I can try and understand.


May 2025

He's always so kind, caring and informative. Very happy with him.


April 2025

Dr Gainor spent much more time with me than I ever expected... Nice man, great Dr!


March 2025

Dr Gainor is the best. Kind,calm and open to explain.


March 2025

He is an outstanding medical professional and exceptionally knowledgeable, caring and helpful .


March 2025

Dr. Gainor is very reassuring to someone like me that has cancer and is doing well. And he reassures me that about my tests and about the scans and that I shouldn't worry and live my life. And it's so reassuring because he knows everything about me at this point. So that's why all my numbers are 10. Thank you.


March 2025

I was very comfortable with Dr. Gainor. He presented himself in a pleasant yet professional manner and I really felt comfortable. I think I said that already. Anyway, yeah, I did. Thank you.


March 2025

He is a good Dr.


February 2025

Outstanding listener. Never rushed any conversation

View More
Ratings and Comments Powered by NRC Health