About Rebecca Karp, MD

Dr. Rebecca Karp is a hematologist at the Massachusetts General Hospital and an Assistant Professor at Harvard Medical School. She treats a broad range of hematologic disorders and has a particular interest in antiphospholipid antibody syndrome, hematologic complications of pregnancy, and porphyria. She is Co-Founder and Co-Director of the multidisciplinary Mass General Porphyria Center, the largest porphyria center in New England. Dr. Karp received her medical degree from the Icahn School of Medicine at Mount Sinai Hospital in New York City and completed her residency in Internal Medicine and fellowship in Hematology/Oncology at Beth Israel Deaconess Medical Center in Boston. Dr. Karp is highly involved in medical education, and spends much of her time teaching medical students, residents, and fellows.

Departments, Centers, & Programs:

Clinical Interests:

Treats:

Locations

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

Mass General Brigham Healthcare Center
52 Second Ave.
Waltham, MA 02451
Phone: 781-487-6100
Fax: 617-487-6201

Medical Education

  • MD, Mount Sinai School of Medicine
  • Residency, Beth Israel Deaconess Medical Center
  • Fellowship, Beth Israel Deaconess Hospital

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(140 Ratings, 74 Comments)

March 2025

My experience with this provider was overall positive. [redacted]


March 2025

Dr. Karp is a fantastic doctor She and her team have monitored me and given me amazing care.


March 2025

I had a very good experience with Dr Karp she was very knowledgeable and easy to communicate with. [redacted]


March 2025

Dr Karp is brilliant, empathetic, and very careful


March 2025

Dr. Karp is wonderful. I am a new patient. She was thorough, helpful, understanding, and kind. She made it a pleasant experience.


March 2025

My experience with Dr. Karp and Dr. [redacted] was absolutely outstanding. They listened, were very knowledgeable and took exception to my case. I only have the utmost respect for Dr. Karp and Dr. [redacted] and I look forward to working with them in the future.


March 2025

Dr. Karp was an absolute delight. She was thorough in her assessment of my history and condition, deeply knowledgeable and informative, a clear and direct communicator, patient, calm, positive, and highly empathetic. I wish more doctors were like her!


March 2025

Dr Karp was very knowledgeable and went over my history in detail. She had a lot of insight thoughts about what had happened to me


March 2025

I was very pleased with the information I got from this and we haven't finished the visit because she was going to call me back on information that she's going to find out for myself and everything went as smooth as I could expect it to go. Thank you.


March 2025

She knows her field of expertise yet asks all health related issues

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