There are 26 Gastroenterology clinicians in Columbia, SC in Medicare’s data, ranked by the number of Medicare services they provide.
Gastroenterology clinicians in Columbia
| Clinician | Experience | Telehealth | Medicare patients | Assignment |
|---|---|---|---|---|
| Georges Postic, MD | 24 yrs | — | 789 | Accepts |
| Walter Bristow, MD | 37 yrs | — | 688 | Accepts |
| Edward Kimbrough, MD | 24 yrs | — | 693 | Accepts |
| Jorge Galan, DO | 33 yrs | — | 696 | Accepts |
| Siva Chockalingam, MD | 39 yrs | — | 425 | Accepts |
| James Mann, M.D. | 27 yrs | — | 494 | Accepts |
| Faith Villanueva, MD | 9 yrs | — | 435 | Accepts |
| Daniel Iseman, MD | 26 yrs | — | 554 | Accepts |
| Spencer Jenkins, M.D. | 33 yrs | — | 538 | Accepts |
| George Jenkins, M.D. | 34 yrs | — | 439 | Accepts |
| Devendra Enjamuri, M.D | 16 yrs | — | 228 | Accepts |
| Nizar Hallak, M.D. | 21 yrs | — | 333 | Accepts |
| Carl Foulks, M.D. | 29 yrs | — | 250 | Accepts |
| Amir Ahmed, M.D. | 29 yrs | Yes | 243 | Accepts |
| Balbir Minhas, MD | 36 yrs | — | 277 | Accepts |
| Mohsen Pourmorteza, MD | 12 yrs | — | 157 | Accepts |
| Olakumbi Otulana, D.O. | 16 yrs | — | 166 | Accepts |
| Zachary Gitto, MD | 9 yrs | — | 244 | Accepts |
| Kenneth Vega, MD | 38 yrs | — | 188 | Accepts |
| David Sachar, MD | 29 yrs | Yes | 214 | Accepts |
| Joseph Meserve, M.D. | 11 yrs | — | 177 | Accepts |
| Nuri Ozden, M.D. | 33 yrs | — | 94 | Accepts |
| Rajinder Parmar, MD | 37 yrs | — | 106 | Accepts |
| Howard Monsour, M.D. | 45 yrs | — | 53 | Accepts |
| Anthony Elkins, MD | 30 yrs | — | 37 | Accepts |
| Anthony Lowman, MD | 32 yrs | — | 25 | Accepts |
What the columns mean
- Experience — years since the clinician’s medical-school graduation (when known).
- Telehealth — the clinician reported providing telehealth (video/phone) visits.
- Medicare patients — distinct Original-Medicare beneficiaries in the latest year; a volume signal, not a quality rating.
- Assignment — “Accepts” means they accept the Medicare-approved amount as full payment (lower out-of-pocket for Medicare patients).
Compare hospital prices in Columbia → · All Gastroenterology cities →
Source: CMS Medicare Physician & Other Practitioners and the Doctors & Clinicians National Downloadable File (most recent release). Counts reflect Original Medicare activity only and are not a measure of quality. “Medicare allows” is the Medicare fee schedule amount — not what an insured or cash patient pays; for patient prices see the linked procedure pages. Always confirm a clinician’s current details with their office.