Gastroenterology in San Francisco, California
Data updated monthly · Last refresh September 2026
103 Gastroenterology providers practice in San Francisco, and 50% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in San Francisco
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. Abdul Kouanda, MDSan Francisco, CA · $204 in drug and device payments (2025) · Telehealth ·
(347) 419-5999 Dr. Alejandro LopezSan Francisco, CA · $144 in drug and device payments (2025) ·
(787) 806-6380 Dr. Allyson Richardson, MDSan Francisco, CA · $684 in drug and device payments (2025) · Telehealth ·
(415) 502-4444 Dr. Andrew Nett, M.D.San Francisco, CA · $18 in drug and device payments (2025) ·
(415) 600-1151 Dr. Angela LamSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 833-2000 Dr. Annette Kwon, MDSan Francisco, CA · $3,730 in drug and device payments (2025) · Telehealth ·
(415) 923-3050 Dr. Annsa Huang, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 221-4810 Dr. Aristotle Mendiola, M.D.San Francisco, CA · $1,280 in drug and device payments (2025) · Telehealth ·
(415) 387-8800 Dr. Averil Ma, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 502-9405 Dr. Benjamin Yip, MDSan Francisco, CA · $1,253 in drug and device payments (2025) · Telehealth ·
(415) 600-4025 Dr. Brock Macdonald, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-2777 Dr. Bruce Wang, M.D.San Francisco, CA · $26,590 in drug and device payments (2025) · Telehealth ·
(415) 476-2777 Dr. Cathleen Cabansag, MDSan Francisco, CA · $1,548 in drug and device payments (2025) · Telehealth ·
(415) 749-6900 Dr. Charlotte Ching, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 502-4444 Dr. Cheikh Njie, MDSan Francisco, CA · $120 in drug and device payments (2025) · Telehealth ·
(415) 502-4444 Dr. Christian Mathy, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 502-4444 Dr. Christina Chou, MDSan Francisco, CA · $541 in drug and device payments (2025) ·
(415) 600-1000 Dr. Christopher Hamerski, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 600-1151 Dr. Colin FeuilleSan Francisco, CA · $133 in drug and device payments (2025) ·
(628) 206-8000 Dr. Connie WangSan Francisco, CA · $981 in drug and device payments (2025) · Telehealth ·
(415) 476-1528 Dr. Courtney Gonzales, M.D.San Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 476-1528 Dr. Dayana Carcamo-molina, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 600-3954 Dr. Dean Rider, MDSan Francisco, CA · $189 in drug and device payments (2025) ·
(415) 658-7497 Dr. Dennis Shen, MDSan Francisco, CA · $170 in drug and device payments (2025) ·
(415) 292-3313 Dr. Douglas Corley, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 833-2000 Dr. Edward Doo, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 600-1111 Dr. Elizabeth Ross, M.D.San Francisco, CA · $22 in drug and device payments (2025) ·
(415) 833-2000 Dr. Fernando Velayos, MDSan Francisco, CA · $154 in drug and device payments (2025) ·
(415) 502-4444 Dr. Francis Yao, MDSan Francisco, CA · $25,136 in drug and device payments (2025) · Telehealth ·
(415) 353-2318 Dr. Gerald Roberts, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 929-0600 Dr. Gregory Fung, MDSan Francisco, CA · $46 in drug and device payments (2025) · Telehealth ·
(415) 982-6691 Dr. Hal Yee, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 206-8822 Dr. Harvey Watts, M.D.San Francisco, CA · $115 in drug and device payments (2025) · Telehealth ·
(415) 759-2121 Dr. Jacquelyn Maher, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 206-8822 Dr. Jagrati Mathur, MDSan Francisco, CA · $30 in drug and device payments (2025) ·
(415) 379-2980 Dr. James Allison, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 206-8822 Dr. James Ostroff, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 502-2112 Dr. James Ryan, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 750-2105 Dr. James Yan, D.O.San Francisco, CA · $1,135 in drug and device payments (2025) ·
(415) 781-1818 Dr. Jane Melnick, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 923-3577 Dr. Jeanne-marie GiardSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-3143 Dr. Jeffrey Baumgardner, MDSan Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 206-8823 Dr. Jennifer Chen, MDSan Francisco, CA · $25 in drug and device payments (2025) · Telehealth ·
(415) 502-4444 Dr. Jesse Liu, MDSan Francisco, CA · $2,604 in drug and device payments (2025) ·
(415) 387-8800 Dr. John Cello, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-1702 Dr. John WangSan Francisco, CA · $1,797 in drug and device payments (2025) · Telehealth ·
(415) 387-8800 Dr. Jonathan Pritikin, MDSan Francisco, CA · $80 in drug and device payments (2025) ·
(415) 833-2000 Dr. Jonathan Terdiman, MDSan Francisco, CA · No drug or device payments recorded (2025) · Telehealth ·
(415) 502-4444 Dr. Joseph Chen, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 443-4692 Dr. Justin Louie, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 833-4983 Conditions Gastroenterology providers in San Francisco, 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 San Francisco, California?There are 103 Gastroenterology providers with active NPI records practicing in San Francisco, according to federal NPPES data refreshed monthly.
How many Gastroenterology providers in San Francisco received drug or device company payments?52 of 103 (50%) 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 San Francisco treat?Gastroenterology providers in San Francisco 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 San Francisco Gastroenterology across California
