About John McGrath, MD

Clinical Interests:

Treats:

Locations

Mass General Cancer Center at Emerson Hospital
131 Old Rd. To Nine Acre Corner
John Cuming Building
Concord, MA 01742
Phone: 978-287-3290

Medical Education

  • MD, University of Vermont College of Medicine
  • Residency, Tufts Medical Center

American Board Certifications

  • Radiation Oncology, American Board of Radiology

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(369 Ratings, 178 Comments)

June 2025

Very pleasant.


June 2025

Dr. McGrath explained things in a way that was easily understandable, and answered all my questions fully.


June 2025

Dr. Mcgrath is the best! Thank you!!!!!


June 2025

He put me at ease and explained everything


June 2025

Dr McGrath was wonderful


June 2025

Dr. McGrath is the finest physician I have ever known and I feel so fortunate to be under his care. He is not only a brilliant doctor, he is so kind and truly cares for his patients. I remember when I was first diagnosed with breast cancer and was beginning my radiation treatment I was very nervous to meet my radiation oncologist and as soon as ... Read More


June 2025

Dr McGrath is an excellent Dr and has a great personality. He makes his patients feel relaxed and optimistic for their future.


June 2025

I absolutely loved the provider and all of his staff. I was very upset/concerned about my breast cancer diagnosis and left there confident in the care I was receiving. I cannot say enough about that whole office and staff.


June 2025

He and office and nurses were fantastic


June 2025

My experience with "Doctor Jack" has always been very fine.

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