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Pediatric Gastroenterologists in California

Data updated monthly · Last refresh October 2026

268 Pediatric Gastroenterology providers practice in California, including 4 (1%) offering telehealth. The largest concentration is in Palo Alto. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

268providers
4telehealth
Palo Altotop city

Pediatric Gastroenterology by city in California

Choose a city to see providers there.

Pediatric Gastroenterology in Palo Alto47 providers
Pediatric Gastroenterology in Los Angeles46 providers
Pediatric Gastroenterology in San Diego41 providers
Pediatric Gastroenterology in Sacramento19 providers
Pediatric Gastroenterology in Orange15 providers
Pediatric Gastroenterology in San Francisco15 providers
Pediatric Gastroenterology in Madera14 providers
Pediatric Gastroenterology in Loma Linda12 providers
Pediatric Gastroenterology in Oakland9 providers
Pediatric Gastroenterology in Long Beach5 providers
Pediatric Gastroenterology in Encino3 providers
Pediatric Gastroenterology in Roseville3 providers
Pediatric Gastroenterology in San Jose3 providers
Pediatric Gastroenterology in Fontana3 providers
Pediatric Gastroenterology in Walnut Creek2 providers
Pediatric Gastroenterology in Santa Barbara2 providers
Pediatric Gastroenterology in Clovis2 providers
Pediatric Gastroenterology in Bellflower2 providers
Pediatric Gastroenterology in Fresno2 providers
Pediatric Gastroenterology in Panorama City2 providers
Pediatric Gastroenterology in Santa Clara2 providers
Pediatric Gastroenterology in Mountain View2 providers
Pediatric Gastroenterology in Riverside1 providers
Pediatric Gastroenterology in Tarzana1 providers

Pediatric Gastroenterology providers in California

Listed by city, largest first. 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. Peace Dike, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Perseus Patel, MD
Palo Alto, CA · $1,603 in drug and device payments (2025) · (650) 497-8000
Dr. Philip Fernandes, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 725-9813
Dr. Phuong Nguyen, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 723-5070
Dr. Rachel Bensen, MD
Palo Alto, CA · $26 in drug and device payments (2025) · (650) 497-8000
Dr. Rachel Herdes, DO
Palo Alto, CA · $29 in drug and device payments (2025) · (650) 497-8000
Dr. Rachel Ruiz, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 723-5070
Dr. Ricardo Castillo, MD
Palo Alto, CA · $43 in drug and device payments (2025) · (650) 497-8000
Dr. Roberto Gugig, MD
Palo Alto, CA · $5,818 in drug and device payments (2025) · (650) 497-8000
Dr. Ruben Colman, M.D.
Palo Alto, CA · $56 in drug and device payments (2025) · (650) 497-8000
Dr. Sapana Shah, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Seema Khan, MD
Palo Alto, CA · $83 in drug and device payments (2025) · (650) 497-8000
Dr. Shikib Mostamand, M.D.
Palo Alto, CA · $388 in drug and device payments (2025) · (650) 497-8000
Dr. Shweta Namjoshi, MD, MPH
Palo Alto, CA · $4,853 in drug and device payments (2025) · Telehealth · (650) 497-8000
Dr. Sohail Husain, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. Stephen Trisno, MD
Palo Alto, CA · $14 in drug and device payments (2025) · (650) 497-8000
Dr. Warapan Nakayuenyongsuk, MD
Palo Alto, CA · $17 in drug and device payments (2025) · (650) 723-5070
Dr. William Berquist, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 723-4000
Dr. Yasemin Cagil, M.D.
Palo Alto, CA · $565 in drug and device payments (2025) · (650) 497-8000
Dr. Zachary Sellers, MD, PHD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 497-8000
Dr. James Tipton, MD
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Jorge Rodriguez, M.D.
Panorama City, CA · No drug or device payments recorded (2025) · (818) 375-2000
Dr. Ghanim Almohammad Aljomah, M.D.
Riverside, CA · No drug or device payments recorded (2025) · (951) 782-3684
Dr. Michael Durant, MD
Roseville, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Pratima Kodali, MD
Roseville, CA · No drug or device payments recorded (2025) · (916) 784-4000
Dr. Sravan Kumar Reddy Matta, MD
Roseville, CA · No drug or device payments recorded (2025) · (916) 474-2250
Dr. Allison Wong, M.D.
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-5912
Dr. Arthur Delorimier, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-4192
Dr. Daphne Say, M.D.
Sacramento, CA · $234 in drug and device payments (2025) · (916) 734-7098
Dr. David Kawatu, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-1720
Dr. Dean Libet, MD
Sacramento, CA · No drug or device payments recorded (2025) · (800) 823-4543
Dr. Emi Suzuki, DO
Sacramento, CA · $103 in drug and device payments (2025) · (916) 734-7098
Dr. Johann Peterson, M.D.
Sacramento, CA · $489 in drug and device payments (2025) · (800) 470-0071
Dr. Jonathan Africa, M.D.
Sacramento, CA · $103 in drug and device payments (2025) · (916) 262-9022
Dr. Kelly Haas, MD
Sacramento, CA · $122 in drug and device payments (2025) · (916) 734-3720
Dr. Kiran Mudambi, MD
Sacramento, CA · $138 in drug and device payments (2025) · (650) 267-0562
Dr. Lybil Mendoza Alvarez, M.D.
Sacramento, CA · $73 in drug and device payments (2025) · (916) 887-4780
Dr. Maheen Hassan, M.D.
Sacramento, CA · $122 in drug and device payments (2025) · (916) 734-7098
Dr. Marina Panopoulos, M.D.
Sacramento, CA · $44 in drug and device payments (2025) · (916) 262-9022
Dr. Mary Sawh, MD
Sacramento, CA · $139 in drug and device payments (2025) · (916) 887-4780
Dr. Robert Cannon, MD
Sacramento, CA · No drug or device payments recorded (2025) · (916) 734-3750
Dr. Sindhura Batchu, M.D.
Sacramento, CA · $122 in drug and device payments (2025) · (916) 734-3720
Dr. Sunpreet Kaur, M.D.
Sacramento, CA · $238 in drug and device payments (2025) · (916) 734-7098
Dr. Trinh Truong, M.D.
Sacramento, CA · $225 in drug and device payments (2025) · (916) 734-7098
Dr. Yinka Davies, MD
Sacramento, CA · $380 in drug and device payments (2025) · (916) 332-1244
Dr. Khiet Ngo, D.O.
San Bernardino, CA · No drug or device payments recorded (2025) · (909) 651-1903
Dr. Sirvart Kassabian, MD
San Carlos, CA · $26 in drug and device payments (2025) · (650) 853-4933
Dr. Amber Hildreth, D.O
San Diego, CA · $40,717 in drug and device payments (2025) · (858) 966-4003
Dr. Amir Jazayeri, MD MBA
San Diego, CA · $20 in drug and device payments (2025) · (858) 966-4003
Dr. Amy Hemperly, DO
San Diego, CA · No drug or device payments recorded (2025) · (858) 966-4003

Common questions

How many Pediatric Gastroenterology providers are in California?

There are 268 Pediatric Gastroenterology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Pediatric Gastroenterology providers in California offer telehealth?

Yes. 4 of the 268 Pediatric Gastroenterology providers in California (about 1%) report offering telehealth services in CMS data.

Which cities in California have the most Pediatric Gastroenterology providers?

Palo Alto (47), Los Angeles (46), San Diego (41) have the highest concentration of Pediatric Gastroenterology providers in California.

How many Pediatric Gastroenterology providers in California received drug or device company payments?

143 of 268 Pediatric Gastroenterology providers in California (53%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider counts and profiles 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.

Which hospitals do Pediatric Gastroenterologists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Pediatric Gastroenterologists hold privileges are Children's Hosp of Los Angeles in Los Angeles; Memorialcare Long Beach Medical Center in Long Beach; Ronald Reagan UCLA Medical Center in Los Angeles.

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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. Are you a Pediatric Gastroenterology in California? Get featured.