Dr. John Zeroogian is accepting new patients!


Dr. John Zeroogian 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.

Treatment Philosophy
Our group strives to provide optimal care for our patients’ digestive health problems in an environment in which they can be comfortable and feel confident in getting the best advice and the most effective treatments.
Specialties and Services
  • Colonoscopy
  • Banding/Hemorrhoid Banding
  • H pylori Breath Test
  • Capsule Endoscopy
  • Upper Endoscopy
  • Colon Cancer Screening
  • Online Video Visits
Online Video Visits
Dr. John Zeroogian is able to offer online tele-health services for patients who want to see or speak to the provider from the comfort of their home. Please contact our office at 626.449.9920 to schedule an appointment.
  • English
Education & Training
  • Fellowship: Beth Israel Hospital and Harvard Medical School
  • Residency: Beth Israel Hospital and Harvard Medical School
  • MD: University of Pittsburgh School of Medicine
Professional Affiliations
  • American Gastroenterology Association (AGA)
Pasadena – Raymond Office 630 S. Raymond Ave., Suite 240 Pasadena, CA 91105 Phone: (626) 449-9920 Fax: (844) 406-5405