Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
MaleLocations
- Brigham and Women's Physician Group
- 850 Boylston Street, Suite 428, Chestnut Hill, MA 02467
- Get Directions
- phone: 617-732-9900
- fax: 617-277-1581
Expertise
Education
- Residency: Mount Auburn Hospital, Internal Medicine, 2004
- Medical Education: University of Massachusetts Medical School, 2001
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 2004
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
- Mass General Brigham Health Plan
- MassHealth
- MassHealth ACO
- Medicare
- Multiplan
- Senior Whole Health
- Tricare
- Tufts Health Plan
- United Health Care
- Wellpoint
- WellSense
Ratings & Reviews
4.9 out of 5
97 ratings, 38 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 3/4/2026
He is the best physician I've ever had. Everything gets addressed, he's courteous, professional, listens, and cares.
- Reviewed on 2/27/2026
Dr. Ash is the most thorough provider that I've ever seen. He takes plenty of time to listen and thoroughly explain everything. He addresses all concerns. He is very knowledgeable and is very patient-centered. And he makes sure to follow up on anything ordered and any concerns that were not fully addressed. I would recommend him to anyone that I know. Thank you.
- Reviewed on 2/27/2026
Dr Ash is always very professional and thorough
- Reviewed on 2/19/2026
Dr Ash as always paid attention to everything I mentioned. He's very professional, taking time to listen, respond to each aspects of the situation, knows my medical history very well and gives the best medical care I could wish for. Every concern is addressed, he professionally choses the prescription for my situation, he takes notes carefully, to ensure nothing is left without an adequate response. He also gives referral to the right department who usually contact me within the the 2 following days of my appointment to go ahead with the next step. I trust his knowledge and professionalism, I truly appreciate the way he listens and asks the right questions. I feel safe during the consultation, I immensely appreciate his professionalism. He's my family's physician for years, and I highly highly recommend him!
- Reviewed on 2/8/2026
He was so nice and helpful
- Reviewed on 1/28/2026
I really like him. He is by far the best PCP I have ever had. He is thoughtful, engaging and most of all he listens.
- Reviewed on 1/27/2026
Dr Ash is one the best primary care doctor you can have. He listen to you and gives you the best knowledge. He has patients listens to your concerns and always there when you need to talk with him. Very caring he give you the feeling that you are in good hands with him. Dr. Brian Ash you are the best. Your patient [redacted]
- Reviewed on 1/22/2026
He knows his job and explained things well.
- Reviewed on 1/12/2026
I have had this care provider for over a decade, even between transfers between two hospitals in the region. Best care team I have ever had, and would definitely recommend to new patients.
- Reviewed on 12/24/2025
Dr Ash is very caring. He also thoroughly explained the benefits of alternating between the MRI & Mammogram for my specific situation. I know understand and feel so much better about it
- Reviewed on 12/14/2025
It's a Blessings to be 1 of Dr. Brian Ash patients in this location at Mass General BW Hospital. I can never thank Dr. Brian Ash enough for giving me this opportunities to be his new patients. He gave me his best care ever at this location. [redacted] He's an EXCELLENT Dr [redacted]
- Reviewed on 12/14/2025
Dr.Brian Ash is truly an incredible doctor. He always is prepared and really knows the patient and is very proactive when considering family medical issues. He listens to patients and never rushes the appointment. I feel seen and heard by Dr. Ash.
- Reviewed on 12/11/2025
Dr. Ash has been my provider for over 10 years and has always treated / addressed all my health concerns efficiently and effectively. I am very fortunate to have him as my pcp
- Reviewed on 12/11/2025
He made sure that I understood everything that he was saying and gave me the time to respond.
- Reviewed on 12/2/2025
Dr. Ash listens carefully and explains things in a way that is easy to understand. I have no complaints about Dr. Ash.
- Reviewed on 11/27/2025
Great doctor
- Reviewed on 11/24/2025
Dr. Ash was professional and extremely knowledgeable. He is all a patient could ask for during the visit.
- Reviewed on 11/15/2025
Though Dr. Ash was running behind and thus I expected him to spend less time with me to try and get back on track, he never made me feel rushed. I didn't have many concerns, but he wanted to talk through them and suggested solutions I was unaware of. This was the best experience with a provider I have had at this practice. Dr. Ash is patient, kind, and great at making what can be a tense experience comfortable.
- Reviewed on 11/12/2025
Dr Ash is amazing. We are so blessed to have him as our primary care physician. [redacted] Ty
- Reviewed on 11/3/2025
Dr Ash is a very kind person he listens well and seems very good at his job
- Reviewed on 11/11/2025
Dr Ash is a wonderful doctor who definitely understands my health condition and needs.
- Reviewed on 10/31/2025
Very thorough. Went through scan results and discussed what he would do next to follow through with his recommendations. Also, gave me recommendations about next steps i should take. MD took time to look through my scan and wanted to regroup with me about next steps, which was very reassuring about moving forward.
- Reviewed on 10/15/2025
Very good
- Reviewed on 9/4/2025
Dr. Ash was very professional and listened to me. He spoke about different options for treatment and decided on the best course of action.
- Reviewed on 8/14/2025
Dr. Ash seems to be knowledgeable and experienced, however I did not feel very understood. He also misgendered me despite us talking about HRT and transitioning.
- Reviewed on 8/4/2025
Dr. Ash was great as always
- Reviewed on 7/13/2025
Dr. Ash is thoughtful and listens to my concerns.
- Reviewed on 6/26/2025
First time meeting this doctor. Very knowledgeable and took his time. I did t feel rushed at all
- Reviewed on 6/26/2025
Good service
- Reviewed on 6/25/2025
I was very impressed that Dr. Ash had a summary of my relevant past medical history and we were able to go through areas of concern systematically and efficiently. He was thorough but focused on important concerns. He listen to me carefully and answered questions so that I understood his recommendations.
- Reviewed on 6/6/2025
Dr. Ash is extremely knowledgeable and thoughtful and is probably the most considerate and thorough primary care I've experienced.
- Reviewed on 5/26/2025
Brian was incredibly thoughtful and thorough.
- Reviewed on 5/24/2025
I have been Dr. Ash's patient for more than 5 years now. Having him as my PCP reduced my healthcare related anxiety tremendously as an individual living in a foreign country. He is very caring and always considers my input about my treatment and concerns.
- Reviewed on 5/21/2025
Dr.Ash is a good doctor- liked him
- Reviewed on 5/19/2025
Brian Ash is a fantastic provider, excellent doctor. I'm really happy to have him as my general practitioner.
- Reviewed on 5/14/2025
Dr. Ash is an excellent M.D. who cares about honest and caring medical treatment. He does not order unnecessary tests, only necessary tests. Thank you Dr. Ash.
- Reviewed on 5/16/2025
Good
- Reviewed on 5/2/2025
It was my first visit with Dr. Ash, although it was on telehealth, but he was very easy to talk to and made me feel very comfortable.