HealthcareDiscovery.AI / Doctors / California / Palo Alto / Gastroenterology

Gastroenterology in Palo Alto, California

Data updated monthly · Last refresh September 2026

29 Gastroenterology providers practice in Palo Alto, and 66% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Gastroenterology providers in Palo Alto

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. Aarti Rao, MD
Palo Alto, CA · $610 in drug and device payments (2025) · Telehealth · (650) 853-2972
Dr. Andrew Roorda, M.D.
Palo Alto, CA · $429 in drug and device payments (2025) · Telehealth · (304) 293-4123
Dr. Bishr Omary, MD, PHD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 493-5000
Dr. Brennan Scott, MD
Palo Alto, CA · $842 in drug and device payments (2025) · Telehealth · (650) 321-4121
Dr. Chelsea Xu
Palo Alto, CA · $703 in drug and device payments (2025) · Telehealth · (650) 853-2972
Dr. Chiazotam Ekekezie, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · Telehealth · (650) 723-4000
Dr. Erick Chan, MD
Palo Alto, CA · $204 in drug and device payments (2025) · Telehealth · (650) 853-2972
Dr. Eugenio Picazo, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 323-3935
Dr. Harry Greenberg, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 493-5000
Dr. Irene Sonu, MD
Palo Alto, CA · $5,157 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Jennifer Pan, M.D.
Palo Alto, CA · $19,342 in drug and device payments (2025) · (650) 493-5000
Dr. Joanne Imperial, MD
Palo Alto, CA · $17,774 in drug and device payments (2025) · (650) 324-7912
Dr. John Clarke, M.D.
Palo Alto, CA · $130 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Matthew Chang, M.D.
Palo Alto, CA · $34 in drug and device payments (2025) · (650) 736-5555
Dr. Mythili Pathipati, MD
Palo Alto, CA · $420 in drug and device payments (2025) · Telehealth · (650) 853-2972
Dr. Nielsen Fernandez-becker, M.D., PH.D.
Palo Alto, CA · $72 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Patricia Garcia, M.D.
Palo Alto, CA · $29 in drug and device payments (2025) · Telehealth · (650) 724-3240
Dr. Paul Rubinstein, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 321-4121
Dr. Peter Gregory, M.D
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 725-9924
Dr. Ramsey Cheung, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 493-5000
Dr. Richard Babb, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 321-4121
Dr. Robert Ruskin, MD
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 326-8527
Dr. Ryan Mcconnell, MD
Palo Alto, CA · $71,075 in drug and device payments (2025) · Telehealth · (650) 853-2972
Dr. Samer Eldika, M.D.
Palo Alto, CA · $1,176 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Sundeep Singh, M.D.
Palo Alto, CA · $43,714 in drug and device payments (2025) · Telehealth · (650) 723-4000
Dr. Susie Liu, MD
Palo Alto, CA · $122 in drug and device payments (2025) · Telehealth · (650) 324-8878
Dr. Suzanne Matsui, M.D.
Palo Alto, CA · No drug or device payments recorded (2025) · (650) 493-5000
Dr. Toru Nakata, MD, PHD
Palo Alto, CA · $26 in drug and device payments (2025) · (650) 723-5948
Dr. Yasser Bhat, M.D.
Palo Alto, CA · $587 in drug and device payments (2025) · Telehealth · (650) 853-2972

Conditions Gastroenterology providers in Palo Alto, 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 Palo Alto, California?

There are 29 Gastroenterology providers with active NPI records practicing in Palo Alto, according to federal NPPES data refreshed monthly.

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

19 of 29 (66%) 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 Palo Alto treat?

Gastroenterology providers in Palo Alto 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 Palo Alto Gastroenterology across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
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.