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Gastroenterology in Oklahoma City, Oklahoma

Data updated monthly · Last refresh September 2026

77 Gastroenterology providers practice in Oklahoma City, and 70% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Gastroenterology providers in Oklahoma City

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. Pooja Singhal
Oklahoma City, OK · $44,992 in drug and device payments (2025) · Telehealth · (405) 772-4338
Dr. Rajesh Kanagala, MD
Oklahoma City, OK · $155 in drug and device payments (2025) · (405) 749-4247
Dr. Ralph Guild, MD
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 271-5428
Dr. Ravinder Kurella, MD
Oklahoma City, OK · $139 in drug and device payments (2025) · (405) 631-0481
Dr. Richard Harty, MD
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 271-3445
Dr. Robert Rankin, M.D.
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 702-1300
Dr. Robert Wilson, M.D.
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 632-4000
Dr. Romelia Barba Bernal, MD
Oklahoma City, OK · $143 in drug and device payments (2025) · (405) 271-5428
Dr. Ross Keener, M.D.
Oklahoma City, OK · $1,080 in drug and device payments (2025) · (406) 632-4000
Dr. Salman Nusrat, M.D.
Oklahoma City, OK · $716 in drug and device payments (2025) · Telehealth · (405) 727-3065
Dr. Sanjay Sikka, M.D.
Oklahoma City, OK · $1,996 in drug and device payments (2025) · (405) 633-9101
Dr. Shana Usiukiewicz
Oklahoma City, OK · $155 in drug and device payments (2025) · (405) 436-9578
Dr. Shih-kuang Hong, MD
Oklahoma City, OK · $77 in drug and device payments (2025) · (405) 772-4338
Dr. Shruti Mony, MD
Oklahoma City, OK · $225 in drug and device payments (2025) · Telehealth · (405) 271-8001
Dr. Son Nguyen, M.D.
Oklahoma City, OK · $1,326 in drug and device payments (2025) · Telehealth · (405) 632-4000
Dr. Sophia Khan, M.D.
Oklahoma City, OK · $1,064 in drug and device payments (2025) · Telehealth · (405) 749-4247
Dr. Sumit Walia, MD
Oklahoma City, OK · $2,381 in drug and device payments (2025) · Telehealth · (405) 727-3065
Dr. Taseen Syed, M.D.
Oklahoma City, OK · $206 in drug and device payments (2025) · (405) 949-3349
Dr. Tauseef Ali, M.D.
Oklahoma City, OK · $92,558 in drug and device payments (2025) · Telehealth · (405) 772-4338
Dr. Teddy Bader, MD
Oklahoma City, OK · No drug or device payments recorded (2025) · (405) 271-5428
Dr. Tony Tran, M.D.
Oklahoma City, OK · $2,323 in drug and device payments (2025) · (405) 749-4247
Dr. Trushar Patel, M.D.
Oklahoma City, OK · $861 in drug and device payments (2025) · (405) 604-6217
Dr. Verapan Vongthavaravat, M.D.
Oklahoma City, OK · $494 in drug and device payments (2025) · (405) 751-4199
Dr. Vincent Petros, DO
Oklahoma City, OK · $1,741 in drug and device payments (2025) · (405) 271-5428
Dr. William Kakish, M.D.
Oklahoma City, OK · $265 in drug and device payments (2025) · (405) 749-4247
Dr. William Tierney, MD
Oklahoma City, OK · $50 in drug and device payments (2025) · Telehealth · (405) 271-8478
Dr. Zachary Smith, M.D.
Oklahoma City, OK · $1,702 in drug and device payments (2025) · Telehealth · (405) 702-1300

Conditions Gastroenterology providers in Oklahoma City, Oklahoma 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 Oklahoma City, Oklahoma?

There are 77 Gastroenterology providers with active NPI records practicing in Oklahoma City, according to federal NPPES data refreshed monthly.

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

54 of 77 (70%) 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 Oklahoma City treat?

Gastroenterology providers in Oklahoma City 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 Oklahoma City Gastroenterology across Oklahoma

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.