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Gastroenterologists in California

Data updated monthly · Last refresh October 2026

2,135 Gastroenterology providers practice in California, including 918 (43%) offering telehealth. The largest concentration is in Los Angeles. 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.

2,135providers
918telehealth
Los Angelestop city

Gastroenterology by city in California

Choose a city to see providers there.

Gastroenterology in Los Angeles195 providers
Gastroenterology in San Diego126 providers
Gastroenterology in San Francisco103 providers
Gastroenterology in Sacramento89 providers
Gastroenterology in Stanford63 providers
Gastroenterology in San Jose46 providers
Gastroenterology in Orange45 providers
Gastroenterology in Torrance44 providers
Gastroenterology in Fresno41 providers
Gastroenterology in La Jolla36 providers
Gastroenterology in Loma Linda33 providers
Gastroenterology in Walnut Creek33 providers
Gastroenterology in Palo Alto29 providers
Gastroenterology in Oakland27 providers
Gastroenterology in Fremont26 providers
Gastroenterology in Santa Monica26 providers
Gastroenterology in West Hollywood26 providers
Gastroenterology in Anaheim25 providers
Gastroenterology in Newport Beach23 providers
Gastroenterology in Beverly Hills23 providers
Gastroenterology in Riverside22 providers
Gastroenterology in Irvine22 providers
Gastroenterology in Modesto21 providers
Gastroenterology in Santa Rosa19 providers

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. Jaya Krishna Chintanaboina, MD
Fresno, CA · $1,187 in drug and device payments (2025) · Telehealth · (559) 513-3204
Dr. Jayanta Choudhury, MD
Fresno, CA · $1,084 in drug and device payments (2025) · Telehealth · (559) 326-1010
Dr. John Abdulian, M.D.
Fresno, CA · $2,632 in drug and device payments (2025) · (559) 323-8200
Dr. Jonathan Myers, D.O.
Fresno, CA · $1,522 in drug and device payments (2025) · (559) 323-8200
Dr. Keith Quint, M.D.
Fresno, CA · No drug or device payments recorded (2025) · (559) 440-5230
Dr. Kevin Kodama, M.D.
Fresno, CA · $1,527 in drug and device payments (2025) · Telehealth · (559) 440-0450
Dr. Kumar Mohan, MD
Fresno, CA · No drug or device payments recorded (2025) · (559) 485-6750
Dr. Mandeep Singh, MD
Fresno, CA · $1,703 in drug and device payments (2025) · Telehealth · (559) 326-1010
Dr. Maricela Rangel-garcia, MD
Fresno, CA · $86 in drug and device payments (2025) · (559) 320-1090
Dr. Melvyn Froese, M.D.
Fresno, CA · No drug or device payments recorded (2025) · (559) 222-5241
Dr. Min Win, MD
Fresno, CA · $343 in drug and device payments (2025) · Telehealth · (559) 438-8400
Dr. Mufti Saadat Farooqi, M.D.
Fresno, CA · $1,389 in drug and device payments (2025) · (559) 435-1979
Dr. Muhammad Hammami, MD
Fresno, CA · No drug or device payments recorded (2025) · (559) 320-1090
Dr. Muhammad Sheikh, M.D.
Fresno, CA · $3,365 in drug and device payments (2025) · Telehealth · (559) 297-2259
Dr. Nasir Halim, M.D.
Fresno, CA · $30 in drug and device payments (2025) · (559) 499-6400
Dr. Patrick Ginn, M.D.
Fresno, CA · $731 in drug and device payments (2025) · (559) 440-0450
Dr. Pradnya Mitroo, MD
Fresno, CA · $6,578 in drug and device payments (2025) · (559) 440-0450
Dr. Prahalad Jajodia, MD
Fresno, CA · $782 in drug and device payments (2025) · (559) 431-8888
Dr. Rajarajeshwari Ramachandran
Fresno, CA · $38 in drug and device payments (2025) · (559) 225-6100
Dr. Ram Mittal, MD
Fresno, CA · $2,879 in drug and device payments (2025) · (559) 449-0309
Dr. Sandeep Sekhon, M.D.
Fresno, CA · $1,598 in drug and device payments (2025) · (559) 440-0450
Dr. Saranya Sasidharan, M.D.
Fresno, CA · $22 in drug and device payments (2025) · (559) 499-6500
Dr. Smita Rouillard, MD
Fresno, CA · $43 in drug and device payments (2025) · (559) 448-4500
Dr. Soo Kim, M.D.
Fresno, CA · $1,067 in drug and device payments (2025) · (559) 440-0450
Dr. Stanley Chang, M.D.
Fresno, CA · No drug or device payments recorded (2025) · (559) 459-4346
Dr. Stephen Davis, M.D.
Fresno, CA · No drug or device payments recorded (2025) · (559) 431-5653
Dr. Ujagger Dhillon, M.D, F.A.C.G.
Fresno, CA · $1,596 in drug and device payments (2025) · (559) 438-8400
Dr. Umapathi Reddy, MD
Fresno, CA · $663 in drug and device payments (2025) · (559) 448-4500
Dr. Vivek Mittal, M.D.
Fresno, CA · $845 in drug and device payments (2025) · Telehealth · (559) 900-4013
Dr. Eugene Yoon, M.D.
Fullerton, CA · $3,464 in drug and device payments (2025) · Telehealth · (714) 446-5831
Dr. Kumkum Patel, M.D., MPH
Fullerton, CA · $94,365 in drug and device payments (2025) · (714) 446-5831
Dr. Martin Carr, M.D.
Fullerton, CA · $23 in drug and device payments (2025) · (714) 446-5831
Dr. Patrick Koo, MD
Fullerton, CA · $1,709 in drug and device payments (2025) · Telehealth · (714) 446-5831
Dr. Richard Mcguire, M.D.
Fullerton, CA · $76 in drug and device payments (2025) · (714) 990-0911
Dr. Sajen Mathews, MD
Fullerton, CA · $2,430 in drug and device payments (2025) · Telehealth · (714) 446-5831
Dr. Scott Sainburg, M.D.
Fullerton, CA · $1,986 in drug and device payments (2025) · Telehealth · (714) 446-5831
Dr. Vijay Prabhakar, M.D.
Fullerton, CA · $1,920 in drug and device payments (2025) · Telehealth · (714) 446-5831
Dr. Yeeshun Miao, M.D.
Fullerton, CA · $766 in drug and device payments (2025) · (714) 626-8610
Dr. Mohan Bhasker, M.D.
Gardena, CA · No drug or device payments recorded (2025) · (310) 914-9150
Dr. William Essilfie, MD
Gardena, CA · No drug or device payments recorded (2025) · (310) 715-6100
Dr. Omid Shaye, M.D.
Garden Grove, CA · $2,398 in drug and device payments (2025) · Telehealth · (800) 544-5844
Dr. Quang Phan, M.D.
Garden Grove, CA · $7,862 in drug and device payments (2025) · (714) 537-5302
Dr. Syam Gaddam, MD
Garden Grove, CA · $1,542 in drug and device payments (2025) · (714) 636-9100
Dr. Kevin Stuart, MD
Gilroy, CA · No drug or device payments recorded (2025) · (408) 847-1311
Dr. Prince Shah, M.D.
Gilroy, CA · $5,069 in drug and device payments (2025) · Telehealth · (408) 848-8336
Dr. Ara Tavitian, MD
Glendale, CA · No drug or device payments recorded (2025) · (818) 265-2232
Dr. Armine Sarkisian, M.D.
Glendale, CA · $319 in drug and device payments (2025) · (818) 507-0006
Dr. Avedis Tavitian, M.D.
Glendale, CA · No drug or device payments recorded (2025) · (818) 242-8916
Dr. Edgar Mehdikhani, MD
Glendale, CA · $1,102 in drug and device payments (2025) · Telehealth · (818) 242-8916
Dr. Frederick Boghossian, M.D.
Glendale, CA · $13,669 in drug and device payments (2025) · (818) 241-0300

Conditions Gastroenterology providers in 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 California?

There are 2,135 Gastroenterology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in California offer telehealth?

Yes. 918 of the 2,135 Gastroenterology providers in California (about 43%) report offering telehealth services in CMS data.

Which cities in California have the most Gastroenterology providers?

Los Angeles (195), San Diego (126), San Francisco (103) have the highest concentration of Gastroenterology providers in California.

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

1,329 of 2,135 Gastroenterology providers in California (62%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Gastroenterology providers in California treat?

Gastroenterology providers 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 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.

Do most Gastroenterologists in California work in independent practices or large health systems?

Among 1,498 Gastroenterologists in California enrolled in Medicare, 21% bill through a solo or small practice with fewer than 10 clinicians, 8% through a mid-size group of 10 to 99, and 71% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in California work at?

According to CMS facility affiliation records, the California hospitals where the most Gastroenterologists hold privileges are Stanford Health Care in Stanford; Ronald Reagan UCLA Medical Center in Los Angeles; Cedars-Sinai 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 Gastroenterology in California? Get featured.