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Sydney S Cash

Sydney S Cash, MD, PhD

Neurology

Highlights

Age Groups Seen

  • Adults
  • Geriatrics

Languages

  • English

Gender

Male

About Sydney S Cash

Sydney S. Cash, MD, PhD, received his MD and PhD degrees from Columbia University College of Physicians and Surgeons, completed his Neurology residency and was a Chief Resident at MGH and BWH. Dr. Cash is on the Neurology staff at MGH, and is an Assistant Professor in Neurology at Harvard Medical School. Dr. Cash is a specialist in epilepsy with research expertise in cortical microphysiology, including research with the investigating the mechanisms of diseases such as epilepsy and ways of interfacing with the brain for improving the lives of people with seizures, paralysis and other neurological difficulties.

Locations

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

Expertise

Education

  • Residency: Brigham and Women's Hospital, Neurology, 2004
  • Internship: Massachusetts General Hospital, Medicine, 2001
  • Medical Education: Columbia University College of Physicians & Surgeons, Medicine, 2000

Insurance

This provider may accept more insurance plans than shown. Please call the practice to find out if your plan is accepted.
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  • 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
  • Medicare ACO
  • 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

43 ratings, 18 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.

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  • Reviewed on 1/28/2026

    The best provider I have encountered in 40 years with chronic health issues.

  • Reviewed on 1/28/2026

    Dr. Cash is great. He is happy to see me annually. He is both knowledgeable and friendly. He cares about my overall health and not just neurology.

  • Reviewed on 1/14/2026

    Dr. Cash is great and easy to talk to.

  • Reviewed on 12/25/2025

    My name is [redacted]. I'm the brother and guardian of [redacted], who is the patient who received care from Dr. Cash. He has been the most thoughtful and helpful provider for [redacted], managing seizures and seizure, anti-seizure medication for an individual with disabilities who has very diminished capacity to understand, but he's always patient and thoughtful and very helpful.

  • Reviewed on 11/14/2025

    Dr. Cash was absolutely incredible. He took a great amount of time to make sure that I was clear on explaining everything that I needed explained to me. He was extremely kind and fully, fully informed regarding my case. It was refreshing to encounter a physician like himself. I feel very fortunate that he is now my neurologist.

  • Reviewed on 11/13/2025

    I was very pleased to hear that Dr. Cash was happy that I was having so few seizures and that by reducing or increasing my medications, I have had reduced seizures and they have continued to fall since then. And therefore, I am pleased with him and with the effectiveness of my medications. Thank you very much.

  • Reviewed on 11/12/2025

    He is very good and I trust him

  • Reviewed on 10/22/2025

    Care provider was very helpful and kind enough to answer all questions asked -

  • Reviewed on 9/10/2025

    Excellent. Knowledgable. Thoughtful.

  • Reviewed on 8/28/2025

    Dr. Cash was an excellent doctor, extremely thorough, very patient, really knew my case, and is trying his hardest to fix my medical problems. Thanks, Dr. Cash.

  • Reviewed on 7/27/2025

    Dr. Cash was amazing, and I feel fortunate to be under his care.

  • Reviewed on 7/18/2025

    Dr. Cash is a great doctor.

  • Reviewed on 6/25/2025

    Very happy with my visit. Feel very comfortable with my doctor as I've been with him for years. I recommend him to others with the same condition. I also recommend anybody to skip out of Maine and go to Boston with illnesses.

  • Reviewed on 6/24/2025

    We have been with Dr. Cash for about 10 years and appreciate the care he has provided for us.

  • Reviewed on 6/12/2025

    Dr Cash is a caring human being, and a 'wicked' smart doctor. I trust him completely, and I am blessed by his care.

  • Reviewed on 5/29/2025

    Dr. Cash is very professional and listens to me, respects my opinion even if he doesn't entirely agree with it or what he would suggest, but he agrees that I think it's the best option for me. I highly recommend him and I just think he's a great physician.

  • Reviewed on 4/10/2025

    Very good provider, took the time to talk, made sure we understood everything, helped out with the laptop and all that.

  • Reviewed on 4/3/2025

    Dr. Cash was great. He asked me questions and I felt he really listened to me. He explained things well and went over a plan with me. It was a great experience.