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Steven Mark Greenberg

Steven Mark Greenberg, MD, PhD

Neurology

Highlights

Age Groups Seen

  • Adults
  • Geriatrics

Languages

  • English

Gender

Male

About Steven Mark Greenberg

Dr. 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. Initiated in 1994, the Hemorrhagic Stroke Research Program has become internationally recognized as a leading authority on the causes, diagnosis, and treatment of cerebral amyloid angiopathy. Dr. Greenberg has authored over 280 research articles and 80 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 in the fields of stroke and neurology including principle investigator for the NINDS MarkVCID biomarkers consortium coordinating center, President of the International CAA Association, chair of the NIH Acute Neurologic Injury and Epilepsy study section, co-chair of the NINDS Alzheimer’s Disease-Related Dementias Summit subcommittee on vascular cognitive impairment, and chair of the American Heart Association International Stroke Conference.

Dr. Greenberg received his undergraduate degree in Biochemistry from Harvard University and MD and PhD degrees from Columbia University under the graduate research training of Dr. James Schwartz. He performed internship at Pennsylvania Hospital, neurology residency at Massachusetts General Hospital, and post-doctoral fellowship at the Brigham and Women's Hospital Center for Neurologic Diseases before joining the Massachusetts General Hospital faculty.

Locations

  1. Massachusetts General Neurology Stroke Service
    • 55 Fruit Street, Wang Building, 8th Floor, Suite 835, Boston, MA 02114
    • Get Directions

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

Search plans
  • 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

68 ratings, 37 reviews

The 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.

How likely would you be to recommend this provider to your family and friends?
Search reviews
  • 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.

  • Reviewed on 6/16/2025

    Dr Steven Greenberg is excellent perfect professional , very knowledgeable of my disease. He advised me proper treatment care plans and give me chance for review research study. I am so grateful to have him

  • Reviewed on 5/21/2025

    Hi, this is [redacted] and Dr. Greenberg was really great to me. He's been talking to me. If I call, he calls right back. Well, not right back, but almost. And I would definitely tell everybody that he's very helpful.

  • Reviewed on 5/21/2025

    Yes, I think Dr. Greenberg is wonderful. He explains everything and puts me at ease and he listens to what I have to say and I'm very glad that I still have him among the doctors that I see. That's all. He's wonderful. Bye-bye.