HealthcareDiscovery.AI / Doctors / California / Downey / Gastroenterology

Gastroenterology in Downey, California

Data updated monthly · Last refresh September 2026

11 Gastroenterology providers practice in Downey. Listings are drawn from federal public records and are not endorsements.

Gastroenterology providers in Downey

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. Andrew Nguyen, MD
Downey, CA · $467 in drug and device payments (2025) · (714) 902-5641
Dr. Ann Lee, M.D.
Downey, CA · $58 in drug and device payments (2025) · (562) 869-4497
Dr. Gareth Dulai, MD
Downey, CA · No drug or device payments recorded (2025) · (562) 657-4292
Dr. Gaurang Chaurushia, MD
Downey, CA · No drug or device payments recorded (2025) · (562) 862-3656
Dr. Kevin Dholaria, M.D.
Downey, CA · $905 in drug and device payments (2025) · (562) 904-4445
Dr. Michelle Vu, M.D.
Downey, CA · $46 in drug and device payments (2025) · (562) 657-4292
Dr. Paul Frenkiel, M.D.
Downey, CA · No drug or device payments recorded (2025) · (562) 861-0954
Dr. Rajeev Attam, MD
Downey, CA · $265 in drug and device payments (2025) · (562) 657-4292
Dr. Steven Weiss, MD
Downey, CA · No drug or device payments recorded (2025) · (562) 861-0897
Dr. Sushil Ojha, MD
Downey, CA · $441 in drug and device payments (2025) · (562) 862-3656
Dr. Terence Chiu, MD
Downey, CA · No drug or device payments recorded (2025) · (562) 657-4292

Conditions Gastroenterology providers in Downey, 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 Downey, California?

There are 11 Gastroenterology providers with active NPI records practicing in Downey, according to federal NPPES data refreshed monthly.

What conditions do Gastroenterology providers in Downey treat?

Gastroenterology providers in Downey 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 Downey Gastroenterology across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.