There are 13 Colorectal Surgery (Proctology) clinicians in San Antonio, TX in Medicare’s data, ranked by the number of Medicare services they provide.
Colorectal Surgery (Proctology) clinicians in San Antonio
| Clinician | Experience | Telehealth | Medicare patients | Assignment |
|---|---|---|---|---|
| Seema Izfar, MD | 20 yrs | — | 395 | Accepts |
| Richard Jackson, M.D. | 41 yrs | — | 299 | Accepts |
| Mario Alcantara, M.D. | 25 yrs | — | 242 | Accepts |
| Michael Keller, M.D. | 21 yrs | Yes | 243 | Accepts |
| Randall Rogers, M.D. | 49 yrs | — | 291 | Accepts |
| John Winston, M.D. | 32 yrs | — | 149 | Accepts |
| James Prieto, MD | 23 yrs | — | 168 | Accepts |
| William Lewis, M.D. | 32 yrs | — | 237 | Accepts |
| Tamara Merchant-Mccambry, M.D. | 27 yrs | — | 137 | Accepts |
| Vincent Caldarola, M.D. | 46 yrs | — | 84 | Accepts |
| Michael Finucan | 10 yrs | — | 75 | Accepts |
| Christopher De Jesus, M.D. | 12 yrs | — | 47 | Accepts |
| Jaclyn Hopper, MD | 10 yrs | — | 12 | 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 San Antonio → · All Colorectal Surgery (Proctology) 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.