Gastroenterology in Riverside, California
Data updated monthly · Last refresh September 2026
22 Gastroenterology providers practice in Riverside. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Riverside
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. Adam Chen, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Anil Garde, MDRiverside, CA · $1,117 in drug and device payments (2025) ·
(951) 697-5669 Dr. Charles Chaya, M.D.Riverside, CA · $23 in drug and device payments (2025) ·
(951) 353-5538 Dr. Eiei Soe, M.D.Riverside, CA · No drug or device payments recorded (2025) ·
(951) 353-2000 Dr. Eric Choi, M.D.Riverside, CA · $248 in drug and device payments (2025) ·
(951) 697-5464 Dr. Galen Huang, MDRiverside, CA · $1,335 in drug and device payments (2025) · Telehealth ·
(951) 788-1450 Dr. James Ma, MDRiverside, CA · $53 in drug and device payments (2025) ·
(909) 353-2000 Dr. James Wang, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. John Pyne, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Jyothi Reddy, MDRiverside, CA · $248 in drug and device payments (2025) ·
(951) 354-3976 Dr. Michael Baek, D.O.Riverside, CA · No drug or device payments recorded (2025) ·
(951) 321-6475 Dr. Peerapol Wangrattanapranee, MDRiverside, CA · $120 in drug and device payments (2025) ·
(909) 475-2612 Dr. Pejman Solaimani, M.DRiverside, CA · $694 in drug and device payments (2025) ·
(951) 224-9100 Dr. Philip Chen, MDRiverside, CA · $647 in drug and device payments (2025) · Telehealth ·
(951) 321-6345 Dr. Ravi Thiruvengadam, MDRiverside, CA · No drug or device payments recorded (2025) · Telehealth ·
(951) 788-7805 Dr. Rawel Randhawa, M.D.Riverside, CA · No drug or device payments recorded (2025) ·
(623) 262-1171 Dr. Robert Wen, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Roger Sayegh, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Ronald OrtizoRiverside, CA · $57 in drug and device payments (2025) ·
(951) 697-5464 Dr. Sharmila Patel, MDRiverside, CA · $27 in drug and device payments (2025) ·
(951) 321-6354 Dr. Thu Pham, M.D.Riverside, CA · $274 in drug and device payments (2025) ·
(951) 782-3615 Dr. Vinod Mishra, MDRiverside, CA · $873 in drug and device payments (2025) · Telehealth ·
(951) 784-6790 Conditions Gastroenterology providers in Riverside, 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.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
Common questions
How many Gastroenterology providers are in Riverside, California?There are 22 Gastroenterology providers with active NPI records practicing in Riverside, according to federal NPPES data refreshed monthly.
What conditions do Gastroenterology providers in Riverside treat?Gastroenterology providers in Riverside 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 Riverside Gastroenterology across California