Quick answers
- Which hospitals does John Winston work at?
- Medicare's official clinician data lists John Winston at 2 hospitals: Baptist Medical Center and Methodist Hospital Stone Oak. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Winston see patients?
- Medicare's clinician data lists 3 practice locations, including San Antonio, TX. Call before your visit to confirm the address.
- What is John Winston's specialty?
- Medicare lists Colorectal Surgery (Proctology) as the primary specialty.
- Does John Winston accept Medicare assignment?
- Yes. Medicare's clinician data says John Winston accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does John Winston offer telehealth?
- Medicare's clinician data says John Winston offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John Winston?
- (210) 490-2828, as listed in official Medicare / NPI Registry data.
- What is John Winston's NPI number?
- 1356357255. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Winston works
Medicare's Facility Affiliation Data lists John Winston at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baptist Medical CenterSan Antonio, TX · Acute Care Hospital · CCN 450058
- Methodist Hospital Stone OakSan Antonio, TX · Acute Care Hospital · CCN 670055
Practice locations
Addresses where John Winston is enrolled with Medicare (CMS data updated 2026-10-02).
- 19288 A Stone Oak PkwySan Antonio, TX 78258 (210) 490‑2828
- 19288 Stone Oak Pkwy, Suite ASan Antonio, TX 78258
- 19288 Stone Oak Pkwy ASan Antonio, TX 78258
Specialties
Find other Colorectal Surgery (Proctology) doctors in Texas →
Other colorectal surgeons in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Alabama School Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1356357255 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians