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Nicholas Karamitsios

Nicholas Karamitsios, MD

Gastroenterology

Mass General Brigham

Highlights

Age Groups Seen

  • Adults

Languages

  • Greek
  • English

Gender

Male

Locations

  1. Mass General Brigham Gastroenterology Clinic at Danvers
  2. Mass General Brigham Gastroenterology Clinic at Salem

Expertise

Education

  • Fellowship: University of Massachusetts Medical School, Gastroenterology, 1999
  • Residency: University of Massachusetts Medical School, Internal Medicine, 1996
  • Internship: University of Massachusetts Medical School, Internal Medicine, 1993
  • Medical Education: Boston University, 1992

Board Certifications

  • Gastroenterology: American Board of Internal Medicine, 1999

Insurance

Search plans
  • Aetna
  • Beech Street
  • Blue Cross Blue Shield
  • 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
  • Medicare
  • Medicare ACO
  • Multiplan
  • Railroad Medicare
  • Senior Whole Health
  • TriCare
  • Tufts Health Plan
  • Tufts Medicare Preferred
  • United Health Care
  • Wellpoint
  • WellSense

Ratings & Reviews

4.8 out of 5

75 ratings, 28 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.

Search reviews
  • Reviewed on 6/30/2026

    Dr. K listened carefully to what i had to say. He was easy to talk to.

  • Reviewed on 6/22/2026

    Dr. Karamitsios is the most engaging, happiest doc I've seen in a long time

  • Reviewed on 6/18/2026

    My provider was personable, clinically professional, appropriate, and very helpful. He made medication recommendations for me and explained them carefully. I am so pleased to have established with him and will continue my care with him.

  • Reviewed on 6/14/2026

    It was excellent... I had my concerns addressed and felt better about my medications for my GI issues. The Dr is very welcoming. I am glad Dr Karamitsios is my Dr!

  • Reviewed on 5/27/2026

    Dr. K is a wonderful doctor. He is attentive, professional, and always helpful with advice and recommendations for my medical needs.

  • Reviewed on 5/17/2026

    Very good

  • Reviewed on 4/25/2026

    Rushed didn't show any concern for what I was describing as my symptoms and offered me no help. [redacted]

  • Reviewed on 4/5/2026

    Thorough, informative, thoughtful, patient in explaining information

  • Reviewed on 4/4/2026

    This was my first appointment with Dr Karamitsios. I was very pleased.

  • Reviewed on 3/18/2026

    Provides very good care.

  • Reviewed on 2/18/2026

    Well done

  • Reviewed on 1/21/2026

    Dr. K as always, was friendly & personable, truly interested in what I had to say. Thank You

  • Reviewed on 12/17/2025

    Dr answered all my questions and said to call or write on website for any help!

  • Reviewed on 12/15/2025

    The most efficient appointment I have ever had

  • Reviewed on 12/14/2025

    This providers is very good for me

  • Reviewed on 12/12/2025

    Dr. Karamitsios is always professional & takes the time to really listen to his patients. I recommended him without reservations.

  • Reviewed on 12/11/2025

    He was extremely patient and took the time to hear my concerns and offer suggestions. He was excellent!

  • Reviewed on 11/19/2025

    I have been seeing Dr. Karamitsios for years and he is professional, knowledgeable, caring and personable. I consider him to be an excellent physician.

  • Reviewed on 11/17/2025

    Hi, I find my experience with Dr. Karamitsios very thorough. I really enjoyed having him as my doctor. He's a very caring person and was very, very kind to me any time I've ever met him. So I would recommend him to anybody. Thank you.

  • Reviewed on 11/17/2025

    Excellent.

  • Reviewed on 11/12/2025

    All good

  • Reviewed on 11/5/2025

    I like visual visits over the phone.

  • Reviewed on 11/3/2025

    The nurses, receptionists, and Doctor were all very pleasant to deal with.

  • Reviewed on 10/27/2025

    Very professional , caring and thorough

  • Reviewed on 10/3/2025

    Dr Karamitsios was knowledgeable about my history. He was very attentive and courteous during the visit. He gave helpful suggestions on next steps.

  • Reviewed on 9/24/2025

    I've been seeing Dr. Karamitsios for many years and I'll continue to keep using him for as long as he keeps working. He's a great guy, does a good job, have no problems with him at all. Bye.

  • Reviewed on 9/19/2025

    Dr. K was wonderful. This was my first true visit with him. I had met him when he did the endoscopy in the operating setting, but this was my first time with him. He listened to everything I had to say, which was a litany of a whole bunch of things, and he treated me with respect, gave me positive feedback on how I could approach certain things in more than one, two different categories at least. I couldn't have asked for anything better. He was wonderful. I was so pleased, and so pleased that he said if I needed to see him again, he would squeeze me in if he had to, that I didn't need to make another appointment, but that if I needed it, I could go through him and book it with him. I couldn't ask for anything more. Thank you, Dr. K.

  • Reviewed on 9/18/2025

    Dr Karamitsios' reputation for being attentive, thorough and kind was very accurate. He has a wonderful and calming manner and I'm glad I was able to get an appt with him.