Daniel S Simpson, MD

Not currently accepting new patients

4.784348 average rating from 115 patient reviews

Specialties

Affiliation

Mass General Brigham

Provider Locations

  • Brookline, MA

Education & Training

  • Residency: Boston City Hospital/Thorndike Memorial Lab, Internal Medicine, 1987
  • Medical Education: New York University School of Medicine, 1984

Board Certifications

  • Internal Medicine, American Board of Internal Medicine

Languages Spoken

  • Swedish
  • Spanish
  • English

Age Group Treated

  • Adults

Patient Feedback

4.784348 average rating from 115 reviews

  • I'm a coworker of Dr.Dan Simpson from his previous employer, the South End Community Health....... he has known my late husband and son for well over 30 years....... it's so rare to have a Doctor as dedicated and knowledgeable as Dr Dan Simpson...... I've recommended him to friends, but apparently he's not accepting new patients, what a shame!

    2026-07-01

  • Dr.SImpson was outstanding as usual. Excellent listener and communicator. Caring, Knowledgeable and has terrific bedside manner. He's the best!!!

    2026-06-25

  • I have a good experience. Thank you.

    2026-06-11

  • I have been using Dr. Simpson for seven years and I think he is a wonderful doctor and very concerned about his patients and very thorough. Thank you.

    2026-06-08

  • First time we met and I felt comfortable and he solved problem.

    2026-06-06

  • Dr Simpson is a most kind and thorough and physician. He loves stems carefully and refers to a specialist when there is a need for a consult on diagnosis. I feel so lucky - and safe- to be his patient.

    2026-04-24

  • Dr Simpson is the most knowledgeable and caring PCP that I have seen in my lifetime. And I am [redacted] years-old, so I have seen quite a few. He is a wonderful skilled doctor. You will not find a better one in the Boston area.

    2026-04-12

  • Very thorough

    2026-04-07

  • Very Happy

    2026-04-05

  • Yes, I believe that Dr. Simpson was very attentive. [redacted] overall, it was a good visit.

    2026-04-01

  • All good

    2026-03-28

  • Everything is excellent

    2026-03-24

  • Dr. Simpson is a caring physician. I'm glad to have him as my provider.

    2026-03-14

  • The experience with the provider was very good.

    2026-03-16

  • I trust Dr. Simpson totally with my care. That's all I need to say.

    2026-02-27

  • Dr. Simpson is a kind, knowledgeable, and efficient physician.

    2026-02-23

  • In all my years going to different providers offices, I've never felt as important as Dr Simpson makes you feel. He is very thorough, kind, compassionate & helpful. It's a shame tte practice is not accepting new patients. He's a gem, a real old fashion, caring physician. I'm grateful he is a member of my care team.

    2026-02-22

  • All hear from my experiences throughout the years

    2026-02-16

  • Well, he's just brilliant, and he still, you know, doesn't show it. He doesn't try to brag about it. Just every question I ask, he has an in-depth answer, which is nice. I told him I was taking something from muscle cramps, and he said, what's the name of it? I told him, he said, would you know the ingredients? He said, oh, no. I said, oh, wait a minute. I have it in my purse, took it out. He understood every single ingredient, which looked like Latin to me. He said, oh, that'll be good. I think, oh, I think this is going to be good for you because it's got this and it's got that, it's got nothing relaxed. And he just understood it totally. He's very kind and gave me lots of good ideas. And of course, they came right away. I think even before I got home, they were spelled out in my patient gateway. And he's just a good man. I really, really enjoy being there, even though I'm sick. So thanks so much. Bye.

    2026-02-16

  • Fantastic work!

    2026-02-25

  • outstanding

    2026-02-04

  • Dr. Simpson has been my doctor for 11 or 12 years, more or less. He's an excellent doctor, respectful and responsible. I feel very safe and at ease with him and his diagnoses. For me, he's an outstanding doctor, 100% recommendable to anyone. Thank you.

    2026-02-05

  • A doctors doctors. Dr. Simpson is who you want training future docs

    2026-01-25

  • Serious, patient, responsible.

    2026-01-22

  • Dr. Simpson was wonderful. He is not my regular PCP, but cared for my issue as if he were. And he is extremely likable, efficient and concise. I appreciated him meeting with me, taking his time with my reason for being there and coming up with a solution. I would see him anytime my regular doctor is not available.

    2026-01-19

  • Dr Simpson took time to review and update himself on my medical history, he came prepared and knowledgeable. Dr Simpson also took a wholistic approach to the challenges I am facing and was very helpful. I enjoy having Dr Simpson as my primary care physician and look forward to continuing to have him as my HCP

    2026-01-21

  • Everything worked out fine with this provider. I was happy with the service and the knowledge of the provider and the future opportunities to continue to work with him.

    2025-12-17

  • Awesome care!

    2025-12-14

  • Dr Simpson is the best Dr I had ever He always is caring takes time with us and he speaks in a clear ay We love him very much and admire him as a person and as a DR

    2025-12-11

  • Fantastic job!

    2025-12-11

  • I am in between Lymphodemea and other pain discomfort. I would like more discussion of possible reason

    2025-12-08

  • Kind, patient, responsive, thorough

    2025-11-05

  • Dr. Simpson always attentive and concerned.....

    2025-10-30

  • Very nice man, takes the time to listen and understand, very thorough

    2025-10-27

  • I have seen Dr Simpson for 25 years. He is a truly outstanding doctor and a very caring person. His bedside manner is the best. He has done so much for me and I followed him here from the SECHC. Nobody gives better and more thorough physical exams and he trains medical students how to do them. He is a wealth of knowledge with a lifetime of experience. My only regret is that he will retire someday. He is not replaceable. And it will not be the same starting with a new doctor someday. I could not recommend him highly enough. He is a man who truly loves his work. And it shows. He brings so much enthusiasm to the practice. Over the years the staff have let on that they all like him very much and enjoy working with him. His good moods are contagious. And he speaks Spanish too. He is a real gem. The BWH Primary Care Associates of Brookline should nominate him for an award, if such a thing exists.

    2025-10-12

  • He is tops

    2025-10-08

  • Dr. Simpson is an excellent doctor. He provides expert information. I trust him with my medical care.

    2025-10-01

  • Dr Simpson is a knowledgeable physician who specializes in treating patients and explaining their symptoms in a reasonable manner

    2025-09-03

  • This was the very best provider appointment I have had in years. Dr Simpson listened to Me intently, explained upcoming tests I Look forward to seeing him again in [redacted]

    2025-08-25

Accepted Insurance

  • MassHealth ACO
  • Wellpoint
  • Fallon Health
  • United Health Care
  • MassHealth
  • Tufts Health Plan
  • Beech Street
  • Cigna
  • Senior Whole Health
  • Medicare
  • Humana
  • TriCare
  • Coventry
  • Medicare ACO
  • Multiplan
  • Blue Cross Blue Shield
  • Harvard Pilgrim Health Care
  • WellSense
  • Aetna
  • Medicaid CT
  • Mass General Brigham Health Plan
  • Blue Cross Blue Shield Medicare
  • Commonwealth Care Alliance