About Ryan Sullivan, MD

Treats:

Locations

Mass General Cancer Center: Hematology Oncology
55 Fruit St.
Boston, MA 02114
Phone: 617-724-4000
Fax: 617-643-7602

Mass General Cancer Center at Newton-Wellesley
2014 Washington St.
Newton, MA 02462
Phone: 617-219-1230

Medical Education

  • , University of Connecticut School of Medicine
  • Residency, Mount Auburn Hospital
  • Residency, Mount Auburn Hospital
  • Fellowship, Beth Israel Deaconess 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(151 Ratings, 54 Comments)

February 2025

Dr. Sullivan is a wonderful oncologist. Despite the number of patients he may be seeing on a given day, I never feel rushed. He makes me feel perfectly comfortable discussing all of my concerns. I truly believe I am here today because of his care and expertise.


February 2025

Dr Sullivan is a kind and thoughtful man. I feel fortunate to have him on my team.


January 2025

I am very lucky and grateful that I have Ryan Sullivan, MD as my oncologist. He knows exactly what is going on with me and what is the best treatment plan for me. He is the best and most knowledgeable in his field in my opinion.


January 2025

I'm in excellent hands!


January 2025

I have never had as much confidence in a provider as I do in Dr. Ryan Sullivan. He is fabulous and I would recommend him to any melanoma patient that I have ever met. Thank you.


January 2025

I've been very satisfied with the care I've received. Man's Greatest Hospital


January 2025

Dr. Sullivan is an attentive and caring provider He listens well and is easy to have a conversation with.


January 2025

Very professional and personable.


December 2024

This is [redacted], regards to Dr. Ryan J. Sullivan. I have never met a more professional, considerate, caring individual in the healthcare industry. His knowledge surpasses quite a few. I have choices living in New Hampshire to go anywhere and I did choose Mass General and yes, I am truly blessed with Dr. Ryan J. Sullivan. Total asset to your ... Read More


December 2024

Dr Sullivan was always interested in what I had to say even if it were not about my can er

View More
Ratings and Comments Powered by NRC Health