
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
MaleAbout Michael Andrew Pfeffer
Dr. Michael Pfeffer is a classical hematologist at Massachusetts General Hospital. He received his medical degree from the University of Queensland – Ochsner Clinical School, completed his internal medicine residency at Dartmouth-Hitchcock Medical Center, and completed his fellowship in hematology and medical oncology at Oregon Health and Science University (OHSU) where he also served as a Chief Fellow. Dr. Pfeffer has clinical and research interests in thrombosis and hemostasis.
Locations
- Mass General Brigham Cancer Institute Center for Hematology
- 32 Fruit Street, Yawkey Building, 7th Floor, Suite 7b, Boston, MA 02114
- Get Directions
- phone: 617-724-4000
- fax: 617-724-6801
- Mass General Brigham Cancer Institute Medical Oncology Clinic
- 102 Endicott Street, Cancer Center Lower Level, Danvers, MA 01923
- Get Directions
- phone: 978-882-6060
- fax: 978-882-6070
Expertise
Education
- Fellowship: Oregon Health & Science University, Hematology Oncology, 2023
- Residency: Dartmouth Hitchcock Medical Center, Internal Medicine, 2020
- Medical Education: The University of Queensland Ochsner Clinical School, 2016
Board Certifications
- Hematology: American Board of Internal Medicine, 2023
- Internal Medicine: American Board of Internal Medicine, 2020
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield Medicare
- Cigna
- Commonwealth Care Alliance
- Coventry
- Fallon Health
- Harvard Pilgrim Health Care
- Humana
- Maine Community Health Options
- Mass General Brigham Health Plan
- MassHealth
- Medicaid ME
- Medicaid NH
- Medicare
- Medicare ACO
- Multiplan
- Senior Whole Health
- TriCare
- Tufts Health Plan
- Tufts Medicare Preferred
- United Health Care
- Wellpoint
- WellSense
Ratings & Reviews
4.9 out of 5
114 ratings, 39 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- Reviewed on 2/2/2026
Excellent
- Reviewed on 1/28/2026
Dr. Pfeffer was very professional, very informative, and very easy to understand. We look forward to seeing him again.
- Reviewed on 1/25/2026
He was very professional.
- Reviewed on 1/20/2026
Explained very technical blood tests and bone marrow results in a clear easy way. Very reassuring tone.
- Reviewed on 1/18/2026
Dr Pfeffer was very informative, explaining the results of my blood test in a clear and concise manner. I agreed to his overall assessment of my elevated indicators. He ordered a different blood test to cover the other 40% of possible blood disorders. I am very impressed with Dr. Pfeffer's thouroughness.
- Reviewed on 1/12/2026
Provider was great [redacted]
- Reviewed on 1/11/2026
Dr. Pfeffer has made this scary journey very caring, comfortable and understanding. He explains everything step by step and at all times whenever I should email he responds very quickly. I have never been more comfortable or relaxed with any Dr than I am with Dr. Pfeffer. I am so grateful to have him along this journey as my Dr.
- Reviewed on 1/5/2026
I am always happy with the care I receive at my appointment.
- Reviewed on 12/28/2025
I am most fortunate to have this provider. He is always, always available to answer my questions via Gateway or by phone regardless of the time of day. He displays a sincere and authentic interest in my continued health and responds to my questions and concerns with respect and patience. His demeanor is supportive, encouraging and optimistic.
- Reviewed on 12/25/2025
Dr. Pfeffer was very knowledgeable about my rather unusual condition and has been very helpful in helping me access other care through other specialists that I may need in relation to my particular issues. 100%. Thank you so much.
- Reviewed on 11/23/2025
He is a wonderful doctor and his concern for his patients is exemplary.
- Reviewed on 11/17/2025
Very knowledgeable and caring! He took the time to review my medical history and ask questions pertinent to my medical and family history. He was able to diagnose me and explain me, my medical and prescriptions thoroughly. Very good experience!
- Reviewed on 11/16/2025
I was very happy with this doctor; answering all my concerns.
- Reviewed on 10/19/2025
Dr. Pfeffer is a very nice person. He is very dedicated and I think that he is very capable and I have been lucky to find him. Thank you very much.
- Reviewed on 10/13/2025
He took time to explain my new medical issue.
- Reviewed on 9/29/2025
Dr was patient w my many questions and spent a great deal of time w me helping me to understand next steps
- Reviewed on 9/23/2025
Outstanding.
- Reviewed on 9/17/2025
Dr. Pfeffer was excellent, caring, and a good listener, and I would recommend him to anybody.
- Reviewed on 9/17/2025
The doctor was very informative. He was caring, professional and kind when explaining everything in detail for me and my husband to understand.
- Reviewed on 8/25/2025
Dr Pfeffer treated me with the utmost respect, explained everything carefully and answered all my questions!
- Reviewed on 8/20/2025
This care provider make me feel very comfortable with test that he ask me to take. His explanation of the results and his care make me very comfortable knowing that he is 100% invested in the very best care for me and keeping me healthy. Thank you!
- Reviewed on 8/4/2025
Dr. Pfeffer was great. It was our first appointment, but I felt comfortable with him immediately.
- Reviewed on 7/20/2025
Dr. Pfeffer was professional, kind, answered my questions. This was a consult re d- dimer test results that had been ordered by my neurologist.
- Reviewed on 7/14/2025
I have complete confidence in the Procifer.
- Reviewed on 7/16/2025
Dr. Pfeffer is a very good listener and also a teacher. Good combination!
- Reviewed on 7/14/2025
It was easy to talk with him. He was clear and explained all my test results. Made me feel comfortable and that he knew my medical history. I felt good after my visit.
- Reviewed on 7/14/2025
Dr. Pfeffer was very informative, professional and kind. I had my daughter on the .phone from out of state as I am elderly and he was very kind listening and answering all questions both she and I had asked. Highly recommend this provider and I am so happy he is mine for this journey.
- Reviewed on 7/7/2025
Very knowledgeable and trying to get to bottom of my I'll ess
- Reviewed on 7/7/2025
I am. Very fortunate to be a patient of Dr Pfeffer. He always asks good questions and is through and attentive in his responses to my questions . I am confident about my treatment and feel that I am maintaining good progress.
- Reviewed on 6/25/2025
The doctor was attentive and kind. I'm not sure if I saw a nurse or a M.A. The person who took me back to the exam room told me her first name but she did not have a badge visible. She took my vitals and asked some basic questions about falls, pain, and meds. I think all employees should have their employee badges visible at all times.
- Reviewed on 6/25/2025
Dr. Pfeffer listened to all my concerns and was great in responding to all my questions in a way I could understand.
- Reviewed on 6/22/2025
Very courteous and kind
- Reviewed on 6/9/2025
While the purpose of my visit(s) involved multiple steps, the care and treatment I received focused on the end result not just why I there that day.
- Reviewed on 6/8/2025
I was able to see the hematologist Dr. Pfeffer on a cancellation list it was very difficult to get in and I was very happy to see him as I was just on the list to get in with someone as soon as possible as it was months before I could get in as a new patient.
- Reviewed on 6/8/2025
Thorough and easy to understand
- Reviewed on 5/19/2025
The doctor was very attentive and seemed to really want to solve the issue I had come in with.
- Reviewed on 5/19/2025
Very professional and caring.
- Reviewed on 4/8/2025
Caring, knowledgeable, personable, clear
- Reviewed on 3/29/2025
Dr. Pfeffer saw me rather than Dr. [redacted] who was out of town. I appreciated his fitting me into his schedule. He was kind, interested and patient with my many questions.