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Gastroenterologists in Texas

Data updated monthly · Last refresh October 2026

1,477 Gastroenterology providers practice in Texas, including 463 (31%) offering telehealth. The largest concentration is in Houston. 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.

1,477providers
463telehealth
Houstontop city

Gastroenterology by city in Texas

Choose a city to see providers there.

Gastroenterology in Houston272 providers
Gastroenterology in Dallas168 providers
Gastroenterology in San Antonio119 providers
Gastroenterology in Austin65 providers
Gastroenterology in Fort Worth59 providers
Gastroenterology in Plano38 providers
Gastroenterology in El Paso31 providers
Gastroenterology in Galveston30 providers
Gastroenterology in Sugar Land28 providers
Gastroenterology in Lubbock27 providers
Gastroenterology in Temple27 providers
Gastroenterology in Tyler27 providers
Gastroenterology in Round Rock25 providers
Gastroenterology in Arlington23 providers
Gastroenterology in Shenandoah21 providers
Gastroenterology in Irving17 providers
Gastroenterology in Katy16 providers
Gastroenterology in Southlake14 providers
Gastroenterology in Mckinney14 providers
Gastroenterology in Bedford14 providers
Gastroenterology in Mcallen13 providers
Gastroenterology in Amarillo13 providers
Gastroenterology in Webster13 providers
Gastroenterology in Waco13 providers

Gastroenterology providers in Texas

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. 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
Dr. Ikenna Emelogu
Houston, TX · $2,539 in drug and device payments (2025) · (713) 795-4444
Dr. Ira Flax
Houston, TX · No drug or device payments recorded (2025) · (713) 461-1026
Dr. Isaac Raijman, MD
Houston, TX · $74,863 in drug and device payments (2025) · Telehealth · (713) 795-4444
Dr. James Maher, MD
Houston, TX · $553 in drug and device payments (2025) · (281) 945-5190
Dr. Jared Sninsky, M.D.
Houston, TX · $650 in drug and device payments (2025) · Telehealth · (713) 798-0950
Dr. Jason Hou, M.D.
Houston, TX · $7,226 in drug and device payments (2025) · Telehealth · (713) 798-0950
Dr. Jaspaul Azad, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 973-2300
Dr. Jeffrey Juneau, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 442-1700
Dr. Jeffrey Lee, M.D.
Houston, TX · $369 in drug and device payments (2025) · (713) 792-6161
Dr. Jenine Zaibaq-krill, M.D.
Houston, TX · $316 in drug and device payments (2025) · Telehealth · (713) 704-3450
Dr. Jessica Bernica, M.D.
Houston, TX · $1,170 in drug and device payments (2025) · Telehealth · (713) 798-0950
Dr. Jessica El Halabi, MD, MBI
Houston, TX · No drug or device payments recorded (2025) · (713) 441-3372
Dr. Jessica Lin, MD
Houston, TX · $704 in drug and device payments (2025) · (713) 873-2000
Dr. Jignesh Shah, MD
Houston, TX · $73,323 in drug and device payments (2025) · (281) 481-9400
Dr. Jim Schwartz, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 798-2500
Dr. Johanna Chan, M.D.
Houston, TX · No drug or device payments recorded (2025) · Telehealth · (713) 792-6161
Dr. John Clemmons, M.D.
Houston, TX · $1,426 in drug and device payments (2025) · (713) 528-6562
Dr. John Dugan, MD
Houston, TX · $995 in drug and device payments (2025) · Telehealth · (832) 707-5011
Dr. John Hughes, MD
Houston, TX · $245 in drug and device payments (2025) · (713) 442-0000
Dr. John Mathias, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 795-4843
Dr. John Vierling, MD
Houston, TX · $78,691 in drug and device payments (2025) · (713) 798-2500
Dr. Jordan Shapiro, MD
Houston, TX · $47 in drug and device payments (2025) · (713) 526-5511
Dr. Jordan Sparkman, M.D.
Houston, TX · $994 in drug and device payments (2025) · (713) 873-2000
Dr. Jordan Worth, M.D.
Houston, TX · No drug or device payments recorded (2025) · (713) 522-1788
Dr. Joseph Sellin, MD
Houston, TX · No drug or device payments recorded (2025) · (713) 798-5398
Dr. J Sun, MD
Houston, TX · $1,760 in drug and device payments (2025) · Telehealth · (713) 468-2030

Conditions Gastroenterology providers in 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 Texas?

There are 1,477 Gastroenterology providers with active NPI records practicing in Texas, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in Texas offer telehealth?

Yes. 463 of the 1,477 Gastroenterology providers in Texas (about 31%) report offering telehealth services in CMS data.

Which cities in Texas have the most Gastroenterology providers?

Houston (272), Dallas (168), San Antonio (119) have the highest concentration of Gastroenterology providers in Texas.

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

1,112 of 1,477 Gastroenterology providers in Texas (75%) 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 Texas 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 Texas work in independent practices or large health systems?

Among 1,113 Gastroenterologists in Texas enrolled in Medicare, 17% bill through a solo or small practice with fewer than 10 clinicians, 14% through a mid-size group of 10 to 99, and 69% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in Texas work at?

According to CMS facility affiliation records, the Texas hospitals where the most Gastroenterologists hold privileges are Memorial Hermann Hospital System in Houston; Memorial Hermann - Texas Medical Center in Houston; Ut of Texas Southwestern University Hospital - William P. Clements Jr. in Dallas.

Related reading on HealthcareDiscovery.AI

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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 Texas? Get featured.