Ole-Petter R Hamnvik, BAO, MD, MMSC

Ole-Petter R Hamnvik, BAO, MD, MMSC

Not currently accepting new patients

4.889655 average rating from 87 patient reviews

Specialties

Affiliation

Mass General Brigham

Provider Locations

  • Boston, MA

Education & Training

  • Fellowship: Brigham and Women's Hospital, Endocrinology, 2014
  • Residency: Brigham and Women's Hospital, Internal Medicine, 2010
  • Internship: Beaumont Hospital, Medicine/Surgery - Internal Medicine, 2007
  • Medical Education: Royal College of Surgeons in Ireland, 2005

Board Certifications

  • Endocrinology Diabetes and Metabolism, American Board of Internal Medicine
  • Internal Medicine, American Board of Internal Medicine

Languages Spoken

  • Swedish
  • Norwegian
  • French
  • English

Age Group Treated

  • Adults

Patient Feedback

4.889655 average rating from 87 reviews

  • Dr Hamnvik explained things to me that I understood and answered my questions .

    2026-06-28

  • Very attentive and listens to what I say and answer my questions

    2026-07-01

  • Dr Hamnvik is wonderful, thoughtful and collaborative. The resident dr whose name I unfortunately have forgotten was also very good, attentive, respectful and thorough.

    2026-06-14

  • Dr. Hamnvik as always was friendly, welcoming and most importantly knowledgeable. He has excellent communication skills. I have been a patient for several years and have complete faith in his judgment.

    2026-06-13

  • I am grateful to have a care provider of the stature of this care provider.

    2026-06-13

  • I appreciate Dr. Hamnvik's efficiency and knowledge.

    2026-06-01

  • Very happy with my care over the years

    2026-04-05

  • Dr Hamnvik is a superb doctor.

    2026-03-28

  • Very complete and thoughtful experience.

    2026-03-29

  • Dr. Hamnvik knows his field extremely well. He is kind, informed and generous with his time. He answers all questions without hesitation. We are very grateful to have him on our health team.

    2026-03-17

  • This provider is very thorough. He doesn't miss a trick.

    2026-03-16

  • I am grateful to be a patient of Dr. Hamnvik. His expertise is evident, but what stands out most is how personable, thoughtful, and reliable he is. He communicates clearly, follows through on commitments, and brings a calm, patient-centered approach to care. His care has made a real difference and I have a great deal of trust and respect for him and his work.

    2026-02-15

  • Dr. Hamnvik is a caring, thorough, competent physician. I feel very confident in his care for all of the medical issues he helps me take care of.

    2026-02-08

  • I had a virtual follow up with my Dr which was perfect

    2026-01-25

  • Excellent attention to my needs

    2026-01-18

  • Dr. Hamnvik is extremely knowledgeable and caring and always comes prepared to my appointments with multiple solutions to my problems and always talks things through with me very well and is the only doctor that has ever made me feel like they actually care about my health and well-being.

    2025-12-22

  • Dr. Hamnvik is extremely respectful, is informed about my medical history and needs, and provided me with the resources I needed in this appointment. He is a fantastic doctor.

    2025-12-21

  • Very focused on me. Trust worthy After 8 years very helpful in follow up

    2025-12-15

  • Outstanding, Dr Hamnvic always listens & we discuss my wellbeing.

    2025-12-14

  • He is very thorough and thoughtful. He listens carefully and answers questions .

    2025-12-11

  • Such a relief to have found this experienced knowledgeable MD!

    2025-12-01

  • Dr Hamnvik is smart, kind, professional. I know I'm in the best hands possible. 45 years of T1D and he is the best endocrinologist I've had on my team.

    2025-11-30

  • Dr.Hamnvik took the time to explain test results in detail and make sure I understood all my treatment options. I never felt rushed during appointments - Dr. Hamnvik listened carefully and answered all my questions with patience and care. I also appreciate that he followed up after visits to go over results and next steps. Dr. Hamnvik is a great doctor.

    2025-11-01

  • He is thoughtful, thorough and always treats me with respect. He is a good listener and explains things in a way that is easy to understand and makes sense.

    2025-11-01

  • Excellent, Understands all the other medical issues besides what I see him for. Works with other doctors in terms of providing needed labs and tests.

    2025-10-31

  • I am most grateful to be a patient of Dr. Hamnvik. As always he is friendly, knowledgeable, and fully prepared for the visit. I have complete trust in his care. He typically has a medical student observing the visit. Dr. Hamnvik is an outstanding role model.

    2025-10-31

  • He is the best doctor I have ever met.

    2025-10-25

  • Dr. Hamnvik is thorough and organized.

    2025-10-25

  • Very convincing

    2025-10-01

  • Great comprehensive meeting. Thank You

    2025-09-20

  • If only Dr. Hamnvik could teach other doctors to improve their bedside manners.

    2025-09-13

  • He is one of the kindest doctors I've ever had.

    2025-09-08

  • He is an amazing doctor. He explains everything and listens to any patient concerns and questions. Very thorough.

    2025-09-05

Accepted Insurance

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