Dr. John M. Zeroogian, MD

Dr. Zeroogian practices at Pasadena Endoscopy Center in Pasadena, California.

Dr. Zeroogian's NPI, 1437149226, was assigned on October 24, 2005. Dr. Zeroogian graduated from University of Pittsburgh School of Medicine in 1989. Dr. Zeroogian's Massachusetts license number on file is 73813.

Dr. Zeroogian's primary practice is Pasadena Endoscopy Center, at 55 West Valley Street, Pasadena, CA 91105. The practice phone is (626) 441-4231.

Dr. Zeroogian's primary practice is Pasadena Endoscopy Center in Pasadena, California. Dr. Zeroogian is also affiliated with Huntington Hospital. The medical group on file is Unio Specialty Care, Urology, Encinitas (formerly Genesis Healthcare Partners). Dmand AI also links Dr. Zeroogian to 2 more group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zeroogian practices, 4 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Zeroogian's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Zeroogian is board certified in gastroenterology by the National Board of Physicians and Surgeons. Dmand AI has Dr. Zeroogian's licenses on file in 3 states: Massachusetts, California and Connecticut.

Dmand AI lists acid reflux, chronic inflammatory bowel disease (IBD), colonoscopy, gastroenteritis, gastrointestinal bleeding, hemorrhoids, irritable bowel syndrome (IBS) and upper GI endoscopy among the conditions Dr. Zeroogian treats.

CMS data shows 1,202 Medicare services from Dr. Zeroogian across 11 procedure codes in 2024, for 358 Medicare patients. Medicare paid $89,213 for them.

CMS counts 358 Medicare patients who saw Dr. Zeroogian in 2024. The largest group is 65 to 74, with 177 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 15% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Zeroogian's median patient age at 63, with 55% women.

In 2024, Dr. Zeroogian wrote 332 Medicare Part D claims for 155 patients. 77% of them were for generic drugs. CMS names the drug for 249 of them, across 9 drugs with 11 or more claims each, at $24,783 in total drug cost. In 2023, CMS named 203 claims across 8 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Zeroogian for performance year 2024, reported as part of a group. Dr. Zeroogian accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zeroogian as offering telehealth. CMS counts 79 procedures of colonoscopy by Dr. Zeroogian, more than 74% of the clinicians it reports for that procedure.

Dmand AI links 7 papers to Dr. Zeroogian. The most frequent topics are Metaplasia, Barrett Esophagus and Biopsy. Dr. Zeroogian has published most often in Hum Pathol. Dr. Zeroogian's most frequent co-authors are Stuart Jon Spechler, MD and Irving Waxman, MD.

CMS Open Payments shows 751 general payments to Dr. Zeroogian from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $6,366.

Dr. Zeroogian graduated from University of Pittsburgh School of Medicine in 1989.

Dr. Zeroogian is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.