About Jeffrey Clark, MD

Clinical Interests:

Treats:

Locations

Mass General Cancer Center: Hematology Oncology
55 Fruit St.
Boston, MA 02114
Phone: 617-724-4000
Fax: 617-726-0452

Medical Education

  • , BRMP, DCT, NCI-FCRF
  • MD, Tufts University School of Medicine
  • Residency, Beth Israel Deaconess Hospital
  • Fellowship, COP, NCI, NIH
  • Fellowship, EBP, DCE, NCI, NIH, Bethesda, Md
  • Fellowship, National Cancer Institute

American Board Certifications

  • Internal Medicine, American Board of Internal Medicine
  • 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

5.0out of 5(135 Ratings, 56 Comments)

May 2025

Um, during my experience with this provider, Dr. Clark was very thorough and resourceful. He provided me with all the information that we needed, answered all of our questions, and was able to do it in a way that was easy to understand and seemed very kind and down to earth.


April 2025

Very knowledgeable, shows empathy, I'm confident with him as a provider.


April 2025

Very clear in explaining everything and working on making a treatment plan. We are in good hands


March 2025

I was so happy to have Dr. Clark ... after all I have been through with an unwanted hysterectomy and a neuroendicrine finding. He gave me such great information and hope. He was so kind. After a rather traumatic surgery... he made it all okay.


March 2025

I'm very happy with the service I'm getting from Mass General. Everything is very good. Thank you.


March 2025

I am always treated by my doctor with respect, professionalism, and compassion, demonstrating interest and, above all, accurate knowledge of my condition and rigorous treatment.


March 2025

Dr. Clark is incredibly knowledgeable and also kind and thorough


February 2025

To the point Knew his stuff Next steps were good


January 2025

Dr. Clark is an excellent, caring, knowledgeable physician.


January 2025

Dr. Clark is the best choice I have made for my current illness. He is knowledgeable, patient, kind and gives me hope for the future. His staff is the same and I appreciate all the things they do to make me comfortable. I can't say enough about how I feel being in their care.

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