Dr. John Zeroogian, M.D. obtained his medical degree at the University of Pittsburgh and completed his medical residency at the Massachusetts General Hospital. Dr. Zeroogian followed by completing his gastroenterology fellowship at Beth Israel Hospital and Harvard Medical School. Dr. Zeroogian is able to use the latest techniques and technology to diagnose and treat a full range of digestive issues.
Dr. John Zeroogian, M.D. obtained his medical degree at the University of Pittsburgh and completed his medical residency at the Massachusetts General Hospital. Dr. Zeroogian followed by completing his gastroenterology fellowship at Beth Israel Hospital and Harvard Medical School. Dr. Zeroogian is able to use the latest techniques and technology to diagnose and treat a full range of digestive issues.
The reviews listed below were collected independently of Unio Specialty Care through rater8. Each review represents an authentic and verified patient experience.
All around great experience. Physician is knowledgeable and personable, staff is caring and efficient. Couldn’t ask for more
(1 week ago)
Sep-2026
Always Great!
(1 month ago)
Jul-2026
Cool Dude!
(1 month ago)
Jul-2026
Very thorough and knowledgeable
(2 months ago)
Jul-2026
Very kind and professional.
(4 months ago)
May-2026
Dr. Zeroogian is thorough, informative and encouraging. I fully recommend him.
(4 months ago)
May-2026
Best Doctor ever!
Very thorough and caring
(5 months ago)
Mar-2026
Dr. answered all my questions. He was very knowledgeable.
(6 months ago)
Mar-2026
Dr, was very kind and answered my questions. I don’t feel nervous to have a colonoscopy now. I’ve been putting it off, but now I feel more at ease.
(6 months ago)
Mar-2026
Exceptional!
(6 months ago)
Feb-2026
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GI-Pasadena – Bellefontaine Street
50 Bellefontaine Street Suite 308 Pasadena, CA 91105
Dr. John Zeroogian, M.D. graduated summa cum laude from Springfield College and went on to obtain his medical degree at the University of Pittsburgh, where he graduated first in his class. He subsequently completed his medical residency at the Massachusetts General Hospital in Boston. Dr. Zeroogian followed by completing his gastroenterology fellowship at Beth Israel Hospital and Harvard Medical School.
After his medical training, Dr. Zeroogian joined a large group practice in Massachusetts for over twenty years and was the group’s President for several years. In 2019, he relocated with his family to Pasadena, CA. With his extensive training and experience, Dr. Zeroogian is able to use the latest techniques and technology to diagnose and treat a full range of digestive issues. In his spare time, Dr. Zeroogian enjoys many sports, traveling, and spending time with his wife and two children.
All around great experience. Physician is knowledgeable and personable, staff is caring and efficient. Couldn’t ask for more
Always Great!
Cool Dude!
Very thorough and knowledgeable
Very kind and professional.
Dr. Zeroogian is thorough, informative and encouraging. I fully recommend him.
Best Doctor ever! Very thorough and caring
Dr. answered all my questions. He was very knowledgeable.
Dr, was very kind and answered my questions. I don’t feel nervous to have a colonoscopy now. I’ve been putting it off, but now I feel more at ease.
Exceptional!