Gastroenterology in Columbia, South Carolina
Data updated monthly · Last refresh September 2026
40 Gastroenterology providers practice in Columbia, and 63% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Gastroenterology providers in Columbia
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. Amir Ahmed, M.D.Columbia, SC · $87 in drug and device payments (2025) · Telehealth ·
(803) 434-8866 Dr. Anthony Lowman, MDColumbia, SC · $75 in drug and device payments (2025) ·
(803) 434-8866 Dr. Balbir Minhas, MDColumbia, SC · $21 in drug and device payments (2025) ·
(803) 434-8866 Dr. Benjamin Massey, M.D.Columbia, SC · No drug or device payments recorded (2025) ·
(803) 256-8539 Dr. Brian Weiner, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 434-8866 Dr. Carl Foulks, M.D.Columbia, SC · $51 in drug and device payments (2025) ·
(803) 434-8866 Dr. Daniel Iseman, MDColumbia, SC · $2,723 in drug and device payments (2025) ·
(803) 509-5710 Dr. David Sachar, MDColumbia, SC · $2,488 in drug and device payments (2025) · Telehealth ·
(803) 434-8866 Dr. Dealva Suber, M.D.Columbia, SC · No drug or device payments recorded (2025) ·
(803) 776-4000 Dr. Devendra Enjamuri, M.DColumbia, SC · $1,365 in drug and device payments (2025) ·
(803) 434-8866 Dr. Edward Kimbrough, MDColumbia, SC · $2,590 in drug and device payments (2025) ·
(803) 799-4800 Dr. Faith Villanueva, MDColumbia, SC · $866 in drug and device payments (2025) ·
(803) 799-4800 Dr. Farzin Rashti, M.D.Columbia, SC · $8,856 in drug and device payments (2025) · Telehealth ·
(803) 434-8866 Dr. Fred Karaisz, MDColumbia, SC · $14,758 in drug and device payments (2025) ·
(803) 434-8866 Dr. George Jenkins, M.D.Columbia, SC · $3,198 in drug and device payments (2025) ·
(803) 509-5710 Dr. Georges Postic, MDColumbia, SC · $644 in drug and device payments (2025) ·
(803) 799-4800 Dr. Howard Monsour, M.D.Columbia, SC · $65 in drug and device payments (2025) ·
(803) 434-8866 Dr. James Mann, M.D.Columbia, SC · $2,733 in drug and device payments (2025) ·
(803) 799-4800 Dr. James Strohecker, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 799-4800 Dr. John Popp, M.D.Columbia, SC · No drug or device payments recorded (2025) ·
(803) 799-4800 Dr. Jorge Galan, DOColumbia, SC · $1,618 in drug and device payments (2025) ·
(803) 779-4800 Dr. Joseph Meserve, M.D.Columbia, SC · $92 in drug and device payments (2025) ·
(803) 434-8866 Dr. Joseph Rice, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 799-4800 Dr. Kenneth Vega, MDColumbia, SC · $10,242 in drug and device payments (2025) ·
(803) 434-8866 Dr. Manny Rehman, MDColumbia, SC · $364 in drug and device payments (2025) ·
(803) 434-8866 Dr. Mohammad Abudalou, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 434-8866 Dr. Mohsen Pourmorteza, MDColumbia, SC · $1,462 in drug and device payments (2025) ·
(803) 434-8866 Dr. Navid Madani, M.D.Columbia, SC · No drug or device payments recorded (2025) ·
(803) 776-4000 Dr. Nizar Hallak, M.D.Columbia, SC · $123 in drug and device payments (2025) ·
(803) 434-8866 Dr. Nuri Ozden, M.D.Columbia, SC · No drug or device payments recorded (2025) ·
(803) 434-8866 Dr. Olakumbi Otulana, D.O.Columbia, SC · No drug or device payments recorded (2025) ·
(803) 434-8866 Dr. Rajinder Parmar, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 260-0006 Dr. Richard Helman, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 776-4000 Dr. Saima Siddiqui, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 776-4000 Dr. Samuel Willis, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 799-4800 Dr. Siva Chockalingam, MDColumbia, SC · $31 in drug and device payments (2025) ·
(803) 788-1100 Dr. Spencer Jenkins, M.D.Columbia, SC · $3,403 in drug and device payments (2025) ·
(803) 509-5710 Dr. Tudor Oroian, MDColumbia, SC · No drug or device payments recorded (2025) ·
(803) 434-8866 Dr. Walter Bristow, MDColumbia, SC · $2,881 in drug and device payments (2025) ·
(803) 799-4800 Dr. Zachary Gitto, MDColumbia, SC · $12,648 in drug and device payments (2025) ·
(803) 434-8866 Conditions Gastroenterology providers in Columbia, South Carolina 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 Columbia, South Carolina?There are 40 Gastroenterology providers with active NPI records practicing in Columbia, according to federal NPPES data refreshed monthly.
How many Gastroenterology providers in Columbia received drug or device company payments?25 of 40 (63%) 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 Columbia treat?Gastroenterology providers in Columbia 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 Columbia Gastroenterology across South Carolina
