
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
FemaleLocations
- Massachusetts General Infectious Disease Clinic
- 55 Fruit Street, Cox Building, 5t Floor, Suite 515, Boston, MA 02114
- Get Directions
- phone: 617-726-3906
- fax: 617-726-7653
Expertise
Education
- Fellowship: Massachusetts General Hospital, Infectious Disease, 1985
- Residency: Massachusetts General Hospital, Internal Medicine, 1981
- Internship: New York Presbyterian Hospital, Internal Medicine, 1979
- Medical Education: Harvard Medical School, 1978
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 1984
- Internal Medicine: American Board of Internal Medicine, 1982
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield - Indemnity
- 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
- Medicaid RI
- Medicaid VT
- Medicare
- Multiplan
- Railroad Medicare
- Senior Whole Health
- TriCare
- Tufts Health Plan
- Tufts Medicare Preferred
- United Health Care
- Wellpoint
- WellSense
- WellSense NH
Ratings & Reviews
4.9 out of 5
44 ratings, 21 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 4/1/2026
Dr. Felsenstein is a "20" out of "10" scale. She is for me what I'd call a "medical detective". She listened intensely to all my symptoms and reviewed all previous symptoms and tests. She deeply cares for her patients saying several times, "I'm so sorry for all the pain you are in, I can see how uncomfortable you are." Dr Felsenstein always reaches out to other Drs on my behalf, Neurology, Rheumatology, EMG testing and much more. She does the referrals when I'm at my appointment. [redacted] She believes in the patient being their own "historian" and will ask for detailed information including tests, medications and more during the appt. [redacted] Dr. Felsenstein is not ending your appt in 20 minutes looking at the clock [redacted]. She looks at YOU, and spends as much time as needed with her patients. That well worth waiting for. [redacted] Count your blessings if you become one of her patients. [redacted]
- Reviewed on 3/23/2026
Great doctor and a great person to deal with. Spends as much time with you as needed. No rushing. One of only a few left like her. All doctors should be like her.
- Reviewed on 3/12/2026
There is no one like Dr felsenstein. She needs to be cloned. She is so utterly dedicated and devoted to each and everyone of her patients and shows utmost respect and care for their suffering. She represents what MGH used to be like before it was taken over by investors. She is what healthcare providers should be.
- Reviewed on 3/4/2026
Dr Felsenstein is by far my best doc
- Reviewed on 2/27/2026
Dr. Felsenstein is the best doctor I have ever had. She is thorough caring, extremely intelligent and has saved my life. I hope she knows what she has done for her patients. I will always be grateful to her.
- Reviewed on 1/30/2026
Dr Felsenstein is an excellent doctor who is both knowledgeable and caring. I consider myself fortunate to be her patient.
- Reviewed on 1/28/2026
Dr Felsenstein, is respectful and courteous about her patients needs. I am very grateful to have her as a specialist. She is willing to suggest many possibilities and refer her patients to other areas of medical care when needed. I appreciate her tactfullness and her friendship
- Reviewed on 1/15/2026
Dr. Felsenstein hasn't given up on me in years. My symptoms have created a puzzle that she has not given up on solving. She is so thorough and attentive and has even called me in the evening.
- Reviewed on 12/29/2025
Dr. Donna Felsenstein is an outstanding Doctor. She is always well versed in your medical history, kind, intelligent, empathetic, and familiar with all aspects and disease processes of the human body (and zoonotic diseases as well). She is more than willing to explain complicated lab results and illness and offer the wisest counsel regarding any steps that may be taken to improve the status of your health and general well being. Dr. Felsenstein is also very encouraging. Dr. Felsenstein is also lovely , charming, with a good sense of humor and very forward thinking . She is an unparalleled repository of medical, historical and practical information. Dr Felsenstein is just outstanding ! And I am extremely grateful to be her patient.
- Reviewed on 12/22/2025
Dr Felsenstein is special, she is an expert that goes out of her way to help and understand with compassion which is extremely important for me since I have an unusual chronic illness which most doctors don't understand
- Reviewed on 12/7/2025
Dr. Felsenstein is caring, respectful, and listens to me as a patient, spends time to really understand what is going on with me. She is thorough, and investigative - trying to help me solve the issues I've had. I deeply appreciate her as a provider - especially for a diagnosis that is often poorly understood by others.
- Reviewed on 9/20/2025
Dr. Felsenstein is the most intelligent and detail oriented doctor at MGB. She spends time on every aspect of my health and life as I live with a serious chronic illness. I consider myself extremely lucky to be working with her and hope she is training other staff on ME/CFS so they can take over when she retires.
- Reviewed on 8/21/2025
Dr Felsenstein is one of the most compassionate people I know, and she is a very talented doctor in a field where it can be very hard to find a specialist. I am fortunate to have discovered her.
- Reviewed on 8/6/2025
Very helpful and thorough
- Reviewed on 8/3/2025
Amazing experience. She spent lots of time with me listening to my symptoms.
- Reviewed on 7/21/2025
Dr Felsenstein is the best specialist I have ever had and I have had many. She is extremely compassionate, empathetic, and supportive, that makes for a excellent bedside manner. Furthermore, she is a consummate professional. She's always prepared, she listens carefully and delves deeply into my medical record when we see each other. She always has helpful ideas to help me deal with my condition. I feel very fortunate to have her as my doctor.
- Reviewed on 7/20/2025
Caring and very knowledgeable MD.
- Reviewed on 7/30/2025
Dr Felsenstein shows she really cares about me as a patient and for my health. She has helped me tremendously, and I'll be forever grateful I have had the opportunity to have her as one of my healthcare providers.
- Reviewed on 7/9/2025
The best. Every doctor should treat their patients like Dr. Felsenstein does. You are treated like you are a family member. She is always trying to come up with something that might work.
- Reviewed on 7/4/2025
Dr. Felsenstein is an extremely good provider. She takes in a lot of information. She outsources where it's necessary, and she has helped me greatly in the number of years that I have been seeing her, and I will continue to do so.
- Reviewed on 7/4/2025
I've been working with Dr. Felsenstein for a number of years now, and I consider her one of the finest physicians I've ever worked with, whether it's at Mass General or any other hospital.