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(88 Ratings, 35 Comments)

February 2025

Outstanding listener. Never rushed any conversation


February 2025

It's been 10 years that Dr Gainor has been my Doctor. He's been a Blessing. Because of him, I'm still loving life with my Family, especially with my GrandBabies, [redacted] He, the Nurses & Medical Team are always in my Prayers.


January 2025

As always, Dr. Gainor always shows concern about my health..


January 2025

I valued the experience of these providers!


January 2025

I am so fortunate to have Dr. Gainor and his team! He is thoughtful, knowledgeable, and without a doubt the best healthcare professional I have ever encountered


January 2025

Dr. Gainor continues to provide exemplary care.


January 2025

Dr Gainor is always prompt and explains my test results clearly. Most times these virtual visits work well for both of us. Plan of care agreed upon is clear. I am very comfortable with the care I receive.


January 2025

Dr. Gainor took the time to completely familiarize himself with my medical history. Explain and showed where my issue is on scans. Then explained different options for treatment. Addressed any questions or concerns I might have. He, also, arranged for a surgeon to speak with us during our appointment. Dr. [redacted], the surgeon, also, addressed ... Read More


December 2024

Dr. Gainor is so knowledgeable and patient. He answers all my questions and never rushes me. I appreciate how he not only talks about my scans but shows them to me as he explains. Having the visual and explaining the report in terms I can understand puts me at ease


December 2024

Dr. Gainor enrolled me in an immunotherapy trial over a decade ago that saved my life. He's the BEST!

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