HealthcareDiscovery.AI / Doctors / California / Corona / Gastroenterology

Gastroenterology in Corona, California

Data updated monthly · Last refresh September 2026

5 Gastroenterology providers practice in Corona. Listings are drawn from federal public records and are not endorsements.

Gastroenterology providers in Corona

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Marco Paez, M.D.
Corona, CA · $894 in drug and device payments (2025) · Telehealth · (951) 808-6298
Dr. Mladen Jecmenica, M.D.
Corona, CA · $420 in drug and device payments (2025) · (951) 934-0505
Dr. M. Mazen Jamal, M.D., M.P.H.
Corona, CA · $959 in drug and device payments (2025) · Telehealth · (951) 934-0505
Dr. Omar Shahbaz, M.D., M.S.
Corona, CA · $948 in drug and device payments (2025) · Telehealth · (951) 808-6298
Dr. Shima Ghavimi, M.D.
Corona, CA · $180 in drug and device payments (2025) · (951) 934-0505

Conditions Gastroenterology providers in Corona, California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Gastroenterology providers are in Corona, California?

There are 5 Gastroenterology providers with active NPI records practicing in Corona, according to federal NPPES data refreshed monthly.

What conditions do Gastroenterology providers in Corona treat?

Gastroenterology providers in Corona commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Corona Gastroenterology across California

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.