
Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- English
Gender
MaleAbout Steven Mark Greenberg
Dr. Steven M. Greenberg, Professor of Neurology at Harvard Medical School, holds the John J. Conway Endowed Chair in Neurology, directs the Hemorrhagic Stroke Research Program, and is Vice-Chair for Faculty Development and Promotions at the Massachusetts General Hospital. Dr. Greenberg has authored over 350 research articles and 100 chapters, reviews, and editorials in the areas of hemorrhagic stroke and small vessel brain disease. He has served in many national and international leadership roles including Co-Chair of the American Heart Association ARIA Summit, Principal Investigator for the NINDS MarkVCID biomarkers consortium coordinating center, Co-Principal Investigator for the NINDS DISCOVERY network on post-stroke cognition, Chair of the International CAA Association, Chair of the 2022 American Heart Association Guidelines for Management of Spontaneous Intracerebral Hemorrhage Writing Group, and chair of the American Heart Association International Stroke Conference. Dr. Greenberg is a recipient of the 2024 Harvard Medical School William Silen Lifetime Achievement in Mentoring Award and the 2017 American Heart Association Feinberg Award for Excellence in Clinical Stroke.
Locations
- Massachusetts General Neurology Stroke Service
- 55 Fruit Street, Wang Building, 8th Floor, Suite 835, Boston, MA 02114
- Get Directions
- phone: 617-726-8459
- fax: 617-726-6991
Expertise
Education
- Fellowship: Brigham and Women's Hospital, Neurology, 1994
- Residency: Massachusetts General Hospital, Neurology, 1992
- Internship: Pennsylvania Hospital, 1989
- Medical Education: Columbia University College of Physicians & Surgeons, 1988
Board Certifications
- Neurology: American Board of Psychiatry and Neurology, 2008
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 CT
- 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
66 ratings, 41 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 5/2/2026
Really nice personality, respectful, personable, informative, kind. Helped with the reading of my brain MRI but not sure much with ideas about another problem I was having with sudden and constant headaches.
- Reviewed on 4/23/2026
Well, firstly, I'd like to say just how nice a fellow Dr. Greenberg is and was very, very accommodating and warm in our conversations. Secondly, he listened very, very carefully and you could tell that when he responded by asking further questions. Third, he read the file completely before our meeting and that was very helpful. Four, he made the explanation of my condition with regard to the small stroke versus CAA a lot clearer than I was receiving from the other treatment professional and that's why I asked for the second opinion.
- Reviewed on 4/9/2026
Dr. Greenberg was very thorough, took the time to answer all of our questions. It was very obvious that he had taken the time to look at the scans and look at [redacted]'s chart before we were there for the appointment, and we really appreciate the time he took with us. That's all. Thank you.
- Reviewed on 4/1/2026
i felt very comfortable with Dr .Greenberg
- Reviewed on 3/30/2026
Professional. Knowledgeable, friendly. Seemed interested in me and my problems.
- Reviewed on 3/23/2026
This was my first visit with Dr. Greenberg. After waiting for four years for a real diagnosis, for the first time I felt like someone heard me and Cared! The fact that he announced I was one of his family now , and the immediate follow-up by his team, I finally feel like together with them and my family, I can deal with whatever comes along!
- Reviewed on 3/9/2026
Best provider
- Reviewed on 3/5/2026
Dr. Greenberg is not only one of the most knowledgeable experts in the world on CAA and stroke, but also the most compassionate, thoughtful, caring doctors I have ever encountered (at any time in my life.) He never makes a patient feel rushed and he listens carefully. He interacts with patients in a way that makes you feel important and that he has your back.
- Reviewed on 3/5/2026
Dr. Greenberg is profoundly knowledgeable and most professional. 0n a scale of l - l0, he is infinity. I am so thankful to be in his care and trust him with my life.
- Reviewed on 3/2/2026
I could not be happier. Dr Greenberg spent a lot of time my husband I. We never felt rushed. He answered all our questions. He was very kind.
- Reviewed on 2/26/2026
Dr. Greenberg listened carefully, explained my diagnosis clearly, and answered my questions fully. His prognosis and suggestions for followup were useful and encouraging. I couldn't have had a better experience.
- Reviewed on 2/27/2026
The interaction was very satisfying
- Reviewed on 2/22/2026
Dr. Greenberg is thorough, informed, and explains well.
- Reviewed on 2/20/2026
This was my first meeting with Dr. Greenberg and he did a thorough job looking at my history and my medical files before our discussion. And he looked at all of the results and explained all of the results to me and my wife very clearly. It was an excellent meeting.
- Reviewed on 2/16/2026
Experience and feedback most helpful
- Reviewed on 1/26/2026
Very knowledgeable about my medical issues
- Reviewed on 1/21/2026
Top notch doctor in place for us for years
- Reviewed on 1/22/2026
My experience with Dr. Greenberg was great and he listened to me carefully and he brought up an idea that nobody else brought up, so that was good. [redacted]
- Reviewed on 12/23/2025
Empathetic, caring and lets you k ow he's available if his help is needed in the future
- Reviewed on 12/4/2025
Dr. Greenberg did a great job of making me feel comfortable at home. I was very comfortable sharing any information he asked. He was listening very clearly. I felt heard. I think he's a terrific doctor and I appreciate that Mass General has physicians like he is, like he is. Okay, thank you.
- Reviewed on 11/27/2025
Dr. Greenberg is terrific. It was wonderful.
- Reviewed on 11/24/2025
He was excellent. Very clear with diagnosis and expectations.
- Reviewed on 11/3/2025
He was very helpful in answering all my questions.
- Reviewed on 11/2/2025
Outstanding service all around
- Reviewed on 10/18/2025
To be in the presence of someone as intelligent, knowledgeable, and caring as Dr. Greenberg is a remarkable experience
- Reviewed on 10/18/2025
Hello, yes, Dr. Greenberg is someone that I am very pleased to have as my doctor of neurology. He has been my neurologist twice in the past, each time for a stroke. He gave me excellent care. I just had my third stroke after six years of not having any strokes, and I was very pleased. to be able to have Dr. Greenberg as my neurologist again. I know he is such a very kind person, a very knowledgeable person. He listens very well. He's always very caring in the kind of medical help that he provides to us. So just very pleased to have him.
- Reviewed on 10/15/2025
I was extremely pleased with my appointment with the doctor. He was very knowledgable about my condition, answered all my questions fully and offered good advice.
- Reviewed on 10/12/2025
I thought that Dr. Greenberg was a total professional and very knowledgeable. A pleasurable and comforting experience. Tks
- Reviewed on 10/6/2025
Dr. Greenberg was very informative and caring. He took the time to explain everything I needed to know, answered questions and honestly I was very impressed with his knowledge , work ethic and I left there very impressed with his skills as a doctor.
- Reviewed on 9/19/2025
I reached out to Dr. Greenberg's office and they called me back within half an hour. Dr. Greenberg immediately scheduled a virtual and was able to accelerate the process for me to be admitted to mass General Hospital with the head of comprehensive neurology. I was admitted treated for my Gillian Barett syndrome, which was my diagnosis. I had the best care and it all started with Dr. Greenberg. Thank you so much.
- Reviewed on 9/18/2025
Dr. Greenberg was very nice and asked alots of questions. It was a zoom meeting. I thought he was thorough.
- Reviewed on 9/5/2025
Dr. Greenberg explained everything very, very thoroughly to us. He took time to listen, but he also took time to explain to us. We were very pleased with the appointment and especially the outcome and appreciate his expertise. Thank you.
- Reviewed on 8/27/2025
impressed by his skill and humanity
- Reviewed on 8/25/2025
Very helpful meeting with him And I appreciated the appointment.
- Reviewed on 8/14/2025
Excellent bedside manner. Answered all questions and concerns. Very knowledgeable. I always look forward to seeing him and leave extremely pleased with the visit.
- Reviewed on 8/12/2025
I had questions that I needed answers to, but our time was up and we were told to leave.
- Reviewed on 7/17/2025
He explained his diagnosis very well and took time to answer all of my questions and concerns
- Reviewed on 7/16/2025
Very Patient knowledgeable and pleasant
- Reviewed on 7/14/2025
I can't say enough about Dr. Greenberg. He took phenomenal care of my father, and now I'm reassured that he is taken care of me.
- Reviewed on 7/11/2025
Professional and attentive with a sene of humor. I really appreciate Dr. Greenbergs careful consideration of my conditions.
- Reviewed on 7/4/2025
The opportunity to speak with and spend time with Dr. Greenberg was very, very good. He was knowledgeable and easy to present his side of the information I was providing, and he's an impressive man, an impressive doctor. And I certainly appreciated the opportunity to be in conversations with him and obtain his information that he provided me.