Eric Charles Klawiter, MD

Eric Charles Klawiter, MD

Not currently accepting new patients

4.883495 average rating from 103 patient reviews

Specialties

Affiliation

Mass General Brigham

Provider Locations

  • Waltham, MA
  • Boston, MA

Eric Klawiter, MD, MSc is an Associate Neurologist at Massachusetts General Hospital and Associate Professor of Neurology at Harvard Medical School who specializes in multiple sclerosis (MS) and related diseases. He received his medical training at the Sanford School of Medicine at the University of South Dakota. Following medical school, he completed a medical internship and residency in Neurology at Barnes-Jewish Hospital and Washington University in St. Louis. Dr. Klawiter received fellowship training in neuroimmunology (multiple sclerosis) at Washington University where he was the recipient of a Clinical Research Training Fellowship from the American Academy of Neurology.

Dr. Klawiter's clinical practice focuses on treatment of multiple sclerosis and neuromyelitis optica spectrum disorder (NMOSD) where he serves as Director of the Multiple Sclerosis and Neuromyelitis Optica Unit at MGH. He manages all aspects of MS and NMOSD symptom and disease modifying therapy.

Dr. Klawiter's research interests include multiple sclerosis clinical research and developing new imaging techniques to better understand, diagnose and treat multiple sclerosis. He has written numerous publications relating to evaluating brain connectivity and tissue microstructure in MS with novel MRI and PET techniques. Additionally, he has participated in multiple clinical trials of multiple sclerosis therapeutic agents.

Education & Training

  • Fellowship: Washington University, Neuroimmunology, 2010
  • Residency: Barnes Jewish Hospital, Neurology, 2008
  • Internship: Barnes Jewish Hospital, Internal Medicine, 2005
  • Medical Education: Sanford School of Medicine of the University of South Dakota***NSCH, 2004

Board Certifications

  • Neurology, American Board of Psychiatry and Neurology

Languages Spoken

  • English

Age Group Treated

  • Adults

Patient Feedback

4.883495 average rating from 103 reviews

  • He's awesome and amongst my fav of all the doctors in my care team. I truly appreciate him.

    2026-08-02

  • Dr Klawiter is really a wonderful doctor. I am grateful that I am his patient.

    2026-07-26

  • I totally respect and trust him.

    2026-07-26

  • Thanks

    2026-07-26

  • This provider is one of two doctors who I rely on to manage my complex medical conditions. I have been his patient for more than a decade. He quietly and effectively gives me what I consider to be the best care for my neurologic disease. When I had an ED visit, he was consulted and involved in the background. He works very effectively w/my other specialists. Multiple doctors at MGH and elsewhere have positive comments about working with/him. He treats me with respect and always asks for my perspective. He keeps me informed regarding treatments in clinical trials which might be applicable to my treatment. I am very fortunate to have his care and I trust him as a doctor and a friend.

    2026-07-15

  • He's the best neurologist. I feel safe that I'm in his care. I've been with him since I've been diagnosed from day one, which is 11 years now. I wouldn't trade my health care provider for nothing. He always listens to me. He makes sure that I'm in good care and that I can trust him with my health. And for that, I'm forever grateful because I don't care what world and planet I'm on. I wouldn't want to trade him for another neurologist. I would still come and be under his care because I just know I have no worries when it comes to my healthcare and him being my provider.

    2026-07-01

  • Dr. Klawiter it's very much up to speed on recent developments in treatment and provides helpful insight

    2026-06-14

  • Personable, thorough, easy to understand, extremely knowledgeable. Looking forward to working with Dr.Klawiter in the future.

    2026-05-27

  • doctor Klawiter is awesome. He listens, researches and advises. He is always willing to talk to me. I would follow him anywhere

    2026-05-25

  • Very good!

    2026-05-23

  • [redacted] He's great. I give him 10 across the board. I give your facilities 10 across the board. I'm a big supporter. Thank you for helping me. That's all.

    2026-05-20

  • My doctor did not pass me off to another doctor, he handled the situation and order further tests.

    2026-05-11

  • Thank you

    2026-05-09

  • This was the first time I saw the doctor. My experience was great, but my opinion is not based on a bunch of history.

    2026-05-03

  • Always there to listen support and educate

    2026-04-18

  • He was very patient and listened to me.

    2026-04-12

  • Eric Charles Klawiter is a really great doctor, treated me with good demeanor. Also listened to me carefully, very respectful, seeking for more alternative ways, even when I'm not around, to help with my condition and other people who are suffering the same condition, and that's very respectful and appreciative. Also, he's very reliable, always on time, and knows what he's talking about, has a very great knowledge. Also, he is very honest and willing to give you the best treatment that is around. And also, I respect that they keep the environment clean and stuff. That's awesome. I will definitely recommend.

    2026-04-08

  • Fantastic experience

    2026-03-25

  • Dr Klawiter was extremely knowledgeable, patient and kind. Explained the results of the MRIs, showed me on screen the differences between the current and last tests, answered all my questions, and made me feel like he really cared. I wouldn't hesitate to recommend him to a friend.

    2026-03-22

  • MGH is staffed by intelligent caregivers

    2026-03-08

  • Dr. Klawiter always answers my questions and concerns in a timely manner Everything is explained so that I fully understand.

    2026-02-18

  • I've always had a good experience with Dr. Klawiter. He's very good at following up, explaining, and going over everything so that it could be understood in layman terms.

    2026-02-18

  • My experience was satisfactory.

    2026-02-11

  • I have a complex case, so it would be easy to spend more time than allotted, given the time constraints, I thought the Dr did a very good job.

    2026-01-25

  • If i had to see a neurologist i feel Dr. Klawiter is on my side. He listens to me and explains everthing.

    2026-01-25

  • This provider is a valuable resource to me and is adept at managing the neurological aspects of my complex medical condition. He is one of 2 key providers at MGH that I rely on to manage my health. I have been seeing this provider or 15+ years and I traveled back to Boston each year for an annual appt with this provider during a 7 year time period when I worked out-of-state. He is very knowledgable and quietly exhibits great compassion. I also value his adeptness with showing me my MRIs and seamlessly comparing multiple tests ad hoc to answer my questions. I was directed by a PC at B & W to visit the ER. It was this provider in the background who was giving direction to the Brigham for me. I realize how fortunate I am to have his care. I rely on his direction to jointly make decisions regarding my neurological health. He has great respect for my perspective, but also gives me a lot to think about and his direction. Thank you to this doctor.

    2026-01-16

  • Dr [redacted] and Dr Klawiter are really wonderful doctors. I feel very grateful to be under their care.

    2026-01-11

  • Very thoughtful and took the time to listen carefully to my questions and concerns, and then respond fully and check to make sure I understood everything.

    2026-01-11

  • I'm very happy with the care that I've gotten from Dr. Klawiter. He takes the time to listen and to answer questions. I was diagnosed a couple of years ago, but I still have a lot of questions about MS and what the different symptoms are and where everything is, and he takes the time to go through it to make sure I understand what is happening.

    2026-01-01

  • The physician has made a better attempt to work on a 1 to 1 basis.

    2025-12-21

  • Dr Klawiter knows me well and listened to my new concerns-setting up an appt for cognitive testing, repeating testing from 2-3 yrs ago. Then we Meet again in 6 weeks. He's really Taking these new problems seriously! Thank you!$

    2025-12-21

  • Dr. Klawiter and I had a Zoom meeting and first I spoke with an associate of his whose name I can't remember right now. Both were excellent. The associate took all my history and asked me a bunch of very insightful questions and then Dr. Klawiter came on, we discussed everything. I was very much reassured. We came up with a plan of action that involved some physical therapy. He pulled up an MRI scan, whatever you call it, of my brain and explained certain things. So very informative, very insightful and very reassuring.

    2025-12-07

  • Professional and an expert of my condition!!

    2025-12-02

  • He always listens to my symptoms and includes me in decisions about next steps.

    2025-11-19

  • Dr. Klawiter is kind and professional. I enjoy speaking with him.

    2025-11-16

  • He has been great. Active listener, answers my questions and makes recommendations. While i have not had any relapses, I am confident I am receiving the best of care .

    2025-11-16

  • I've been with Dr. Klawiter for quite some time, a number of years. He is respectful. He is informative. He takes his time. He listens to you. He goes over things very thoroughly. He's a great provider. I would rate him a 10 all the way through. Thank you.

    2025-11-05

  • Respectful, knowledgeable, caring n kind.

    2025-11-03

  • the doctor is the best

    2025-10-28

  • Dr. Klawiter is legit one of the best anywhere.

    2025-10-19

  • Dr. Klawiter is great I would recommend him to anybody who has any neurological disorder especially MS

    2025-10-13

  • Always helpful

    2025-09-24

  • Always very happy with my care from Dr Klawiter. He is very personable, listens well and spends the time needed.

    2025-09-22

Accepted Insurance

  • Tufts Medicare Preferred
  • Wellpoint
  • Medicaid ME
  • WellSense
  • Fallon Health
  • Multiplan
  • Tufts Health Plan
  • Coventry
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield Medicare
  • Beech Street
  • Maine Community Health Options
  • Blue Cross Blue Shield - Indemnity
  • United Health Care
  • Aetna
  • Cigna
  • Commonwealth Care Alliance
  • TriCare
  • Medicare
  • Mass General Brigham Health Plan
  • Medicaid NH
  • Humana
  • Harvard Pilgrim Health Care
  • Senior Whole Health
  • Medicaid VT
  • WellSense NH
  • MassHealth