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 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. Rodney Eddi, M.D.Sonora, CA · $85 in drug and device payments (2025) · Telehealth ·
(209) 536-5760 Dr. Azadeh Brumand, D.O.South Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 543-5985 Dr. Daniel Norman, MDSouth Lake Tahoe, CA · No drug or device payments recorded (2025) ·
(530) 543-5985 Dr. Cal Lin, MDSouth San Francisco, CA · No drug or device payments recorded (2025) ·
(650) 742-2000 Dr. Lawrence Lusk, MDSouth San Francisco, CA · No drug or device payments recorded (2025) ·
(650) 742-2000 Dr. Manmohan Gandhi, MDSouth San Francisco, CA · No drug or device payments recorded (2025) ·
(650) 742-2000 Dr. Aaron Yeoh, MDStanford, CA · $1,624 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Abhishek Dimopoulos-verma, MDStanford, CA · $595 in drug and device payments (2025) ·
(650) 723-4000 Dr. Afrin Rahman, M.D.Stanford, CA · $121 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Aida Habtezion, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 725-6511 Dr. Alexa Weingarden, MD, PHDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Alice Lee, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Andrea Portocarrero Castillo, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Andrew Li, MDStanford, CA · $119,544 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Ann Chen, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 725-3376 Dr. Anson Lowe, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 725-6764 Dr. Ashish Atreja, MDStanford, CA · $769 in drug and device payments (2025) ·
(650) 723-4000 Dr. Charles Hyman, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Chiraag Kulkarni, MDStanford, CA · $328 in drug and device payments (2025) ·
(650) 723-4000 Dr. Christine Cartwright, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Damanpreet Grewal, M.D.Stanford, CA · $29 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Daud Akhtar, MDStanford, CA · $5,037 in drug and device payments (2025) ·
(650) 723-4000 Dr. David Goldenberg, MDStanford, CA · $29 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. David Limsui, M.D.Stanford, CA · $52 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. David Shields, MDStanford, CA · $22,026 in drug and device payments (2025) ·
(650) 723-4000 Dr. Edith Ho, M.D. M.S.Stanford, CA · $338 in drug and device payments (2025) · Telehealth ·
(650) 724-3000 Dr. Edward Pham, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Elizabeth Hwang, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 721-6190 Dr. Grant Barber, MDStanford, CA · $29 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Horace Rhee, MD, PHDStanford, CA · No drug or device payments recorded (2025) ·
(650) 736-5555 Dr. Howard Masuoka, MDStanford, CA · $86 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Ikponmwosa Enofe, MDStanford, CA · $1,799 in drug and device payments (2025) ·
(650) 723-4000 Dr. Jeffrey Glenn, M.D., PH.D.Stanford, CA · $2,221 in drug and device payments (2025) ·
(650) 723-4000 Dr. Jennifer Dimino, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Jennifer Lai, M.D.Stanford, CA · $155 in drug and device payments (2025) ·
(650) 723-4000 Dr. Jennifer Roost, M.D.Stanford, CA · $62 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Joo Hwang, MDStanford, CA · $213,271 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Karen Kim, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Kian Keyashian, M.D.Stanford, CA · $152 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Laren Becker, MD, PHDStanford, CA · $11,402 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Leila Neshatian, MDStanford, CA · $2,904 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Margaret Zhou, MDStanford, CA · $163,013 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Michael Rothenberg, M.D., PH.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 725-3362 Dr. Mike Wei, MDStanford, CA · $174,823 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Monique Barakat, MD, PHDStanford, CA · $6,029 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Nanae Takatori, M.D.Stanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-6661 Dr. Naohisa Yahagi, MDStanford, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Nayna Riyat, M.D.Stanford, CA · $672 in drug and device payments (2025) ·
(650) 723-4000 Dr. Peter Konyn, MDStanford, CA · $20,105 in drug and device payments (2025) ·
(650) 723-4000 Dr. Pradeep Siddappa, MDStanford, CA · $2,610 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 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.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
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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