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Gastroenterology in Houston, Texas

Data updated monthly · Last refresh September 2026

272 Gastroenterology providers practice in Houston, and 76% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Gastroenterology providers in Houston

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. Daniel Zhang, M.D
Houston, TX · $21 in drug and device payments (2025) · (713) 442-6900
Dr. Darshan Anandu, M.D.
Houston, TX · $1,376 in drug and device payments (2025) · (713) 450-3333
Dr. David Graham, M.D.
Houston, TX · $35 in drug and device payments (2025) · (713) 795-0232
Dr. David Nemoto, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 467-2700
Dr. David Richards, MD
Houston, TX · $193 in drug and device payments (2025) · Telehealth · (713) 792-6161
Dr. David Szafron, MD
Houston, TX · $627 in drug and device payments (2025) · Telehealth · (713) 798-0950
Dr. David Wolf, M.D.
Houston, TX · $1,560 in drug and device payments (2025) · Telehealth · (713) 526-5511
Dr. Deepika Satish, MD
Houston, TX · $465 in drug and device payments (2025) · Telehealth · (713) 441-3372
Dr. Dipti Bavishi, MD
Houston, TX · $124 in drug and device payments (2025) · (713) 541-0000
Dr. Disha Kumar, MD
Houston, TX · $940 in drug and device payments (2025) · (817) 304-4816
Dr. Eamonn Quigley, M.D.
Houston, TX · $3,565 in drug and device payments (2025) · (713) 441-3372
Dr. Elizabeth Holt, MD
Houston, TX · $275 in drug and device payments (2025) · (713) 704-5968
Dr. Emmanuel Coronel Cordero, M.D
Houston, TX · $388 in drug and device payments (2025) · Telehealth · (713) 792-6161
Dr. Ernst Dorsch
Houston, TX · No drug or device payments recorded (2025) · (713) 467-4432
Dr. Ethan Miller, M.D.
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 792-6161
Dr. Faiz Javed, DO
Houston, TX · $114 in drug and device payments (2025) · (956) 975-5152
Dr. Farah Harmouch, MD
Houston, TX · $577 in drug and device payments (2025) · (346) 474-1937
Dr. Faraz Bishehsari, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 500-6683
Dr. Fares Ayoub, MD
Houston, TX · $1,882 in drug and device payments (2025) · Telehealth · (713) 798-0950
Dr. Farid Abushamat, MD
Houston, TX · $15,848 in drug and device payments (2025) · (713) 468-2030
Dr. Fasiha Kanwal, M.D.
Houston, TX · $2,393 in drug and device payments (2025) · (832) 826-1385
Dr. Feenalie Patel
Houston, TX · $1,257 in drug and device payments (2025) · Telehealth · (134) 413-3727
Dr. Fernando Urrutia, MD
Houston, TX · $1,411 in drug and device payments (2025) · Telehealth · (713) 441-3372
Dr. Francisco Garcia-torres, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 442-0000
Dr. Franciska Gudenkauf, MD, MPH
Houston, TX · $932 in drug and device payments (2025) · (713) 798-0950
Dr. Frank Lanza, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 977-9095
Dr. Frank Meriano, M.D.
Houston, TX · $732 in drug and device payments (2025) · (713) 795-0464
Dr. Fred Sutton, MD
Houston, TX · $294 in drug and device payments (2025) · (713) 873-8890
Dr. Gabriel Sandoval, MD
Houston, TX · $891 in drug and device payments (2025) · Telehealth · (713) 461-1026
Dr. Gagan Sood, MBBS
Houston, TX · $138 in drug and device payments (2025) · (713) 798-1750
Dr. Gary Glober, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 792-6161
Dr. George Wahba, M.D.
Houston, TX · $146 in drug and device payments (2025) · Telehealth · (713) 792-6161
Dr. Gottumukkala Raju, MD
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 794-5073
Dr. Gowrappala Ramesh, M.D.
Houston, TX · $20,895 in drug and device payments (2025) · Telehealth · (713) 468-2030
Dr. Greg Galler, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 442-0000
Dr. Gulchin Ergun, M.D.
Houston, TX · $1,331 in drug and device payments (2025) · Telehealth · (713) 933-2650
Dr. Gurunath Reddy, M.D.
Houston, TX · $585 in drug and device payments (2025) · (281) 440-0101
Dr. Hani Zamil, M.D.
Houston, TX · $1,070 in drug and device payments (2025) · (713) 500-6677
Dr. Hao Chi Zhang, MD
Houston, TX · $857 in drug and device payments (2025) · Telehealth · (713) 792-6161
Dr. Hari Pokala, M.D.
Houston, TX · $38 in drug and device payments (2025) · (281) 580-1281
Dr. Harry Ojeas, MD
Houston, TX · $2,662 in drug and device payments (2025) · (281) 481-9400
Dr. Harsadbhai Patel, MD
Houston, TX · $434 in drug and device payments (2025) · (832) 708-2686
Dr. Harshinie Amaratunge, M.D
Houston, TX · $2,534 in drug and device payments (2025) · Telehealth · (713) 795-4444
Dr. Hashem El-serag, MD, MPH
Houston, TX · $49,977 in drug and device payments (2025) · Telehealth · (713) 798-2500
Dr. Hashim Khandwalla, M.D.
Houston, TX · $1,248 in drug and device payments (2025) · Telehealth · (713) 461-1026
Dr. Hemant Roy, MD
Houston, TX · $239 in drug and device payments (2025) · (713) 873-8890
Dr. Homayon Sidiq, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 442-0000
Dr. Howard Hamat, MD
Houston, TX · $2,306 in drug and device payments (2025) · Telehealth · (281) 440-0101
Dr. Ian Sachs, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 795-4357
Dr. Ihsan Al Bayati, MD
Houston, TX · $1,334 in drug and device payments (2025) · Telehealth · (832) 522-8560

Conditions Gastroenterology providers in Houston, Texas 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 Houston, Texas?

There are 272 Gastroenterology providers with active NPI records practicing in Houston, according to federal NPPES data refreshed monthly.

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

208 of 272 (76%) 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 Houston treat?

Gastroenterology providers in Houston 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 Houston Gastroenterology across Texas

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.