Gastroenterology in San Marcos, Texas
Data updated monthly · Last refresh September 2026
9 Gastroenterology providers practice in San Marcos. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in San Marcos
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. Anita Bhagavathula, DOSan Marcos, TX · $289 in drug and device payments (2025) ·
(512) 754-8676 Dr. Carlos Neghme, M.D.San Marcos, TX · $2,472 in drug and device payments (2025) ·
(512) 754-8676 Dr. Edward Coles, M.D.San Marcos, TX · $297 in drug and device payments (2025) ·
(512) 754-8676 Dr. John Cluley, M.D.San Marcos, TX · $854 in drug and device payments (2025) ·
(512) 754-8676 Dr. Minh Thu Nguyen, MDSan Marcos, TX · $1,618 in drug and device payments (2025) ·
(512) 754-8676 Dr. Shannon Marek, M.D.San Marcos, TX · $1,025 in drug and device payments (2025) ·
(512) 754-8676 Dr. Steven Pearce, M.D.San Marcos, TX · $1,399 in drug and device payments (2025) ·
(512) 754-8676 Dr. Thomas Kepczyk, M.D.San Marcos, TX · $2,200 in drug and device payments (2025) ·
(512) 754-8676 Dr. William Deschner, M.D.San Marcos, TX · $1,613 in drug and device payments (2025) ·
(512) 754-8676 Conditions Gastroenterology providers in San Marcos, 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.
- Acid reflux
- IBS
- Crohn disease
- Ulcerative colitis
- Celiac disease
- Colon cancer screening
Common questions
How many Gastroenterology providers are in San Marcos, Texas?There are 9 Gastroenterology providers with active NPI records practicing in San Marcos, according to federal NPPES data refreshed monthly.
What conditions do Gastroenterology providers in San Marcos treat?Gastroenterology providers in San Marcos 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 Marcos Gastroenterology across Texas
