About Michael Mazzini, MD

Clinical Interests:

Treats:

Locations

Mass General: Demoulas Center for Cardiac Arrhythmias
55 Fruit St.
Boston, MA 02114
Phone: 617-724-4500

Medical Education

  • MD, University of Colorado School of Medicine
  • Residency, Brigham and Women's Hospital
  • Fellowship, Boston Medical Center
  • Fellowship, Boston Medical Center

American Board Certifications

  • Cardiovascular Disease, American Board of Internal Medicine
  • Clinical Cardiac Electrophysiology, American Board of Internal Medicine

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.

Reviews: Comments and Ratings

4.9out of 5(136 Ratings, 60 Comments)

March 2025

Hi, the doctor was very good. I'm going in to have the defibrillator put in. He explained things so that I could understand them and I could even explain it to other people. He showed care and I trust him.


March 2025

Dr. Mazzini is the best. Caring, thoughtful, great listener, and explains everything In detail and layman's terms.


March 2025

This was my first visit with Dr. Mazzini, as a follow-up from an Emergency Room visit @ Wentworth-Douglass Hospital in late December. He was very kind and helpful in reviewing my situation, and explained what was going on in my heart, by showing me a model of the heart, and the area that was being affected. He explained the surgery required to ... Read More


March 2025

Dr. Mazzini is one of the best doctors I have ever had. He listens to my concerns and he explains fully his interpretation of my tests and symptoms.


January 2025

Excellent treatment and care, The Doctor spent the extra time and used the facility to ensure that my home medical instrumentation was operating properly, That was most definitely appreciated,


January 2025

Dr Mazzini was very nice and listened to me and also my Husband during the visit . I was nervous entering into this appointment but felt calm when speaking to the Dr. because he seem to have a plan of action going forwards for me .


January 2025

Excellent Experience!


January 2025

Dr. Mazzini and his staff were excellent. [redacted].


January 2025

Dr Mazzini is an excellent physician!


January 2025

Dr. Mazzini was very patient and showed me the x-rays, explained where the leads from the pacemaker go, where the new lead to the pacemaker will go, what had caused my issues. I was very, very pleased. My daughter came with me and he was very respectful and forthright to us both. I was very pleased with him.

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