Quick answers
- Which hospitals does Guillermo A. Reyes work at?
- Medicare's official clinician data lists Guillermo A. Reyes at 1 hospital: Baptist Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Guillermo A. Reyes see patients?
- Medicare's clinician data lists 1 practice location in San Antonio, TX. Call before your visit to confirm the address.
- What is Guillermo A. Reyes's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Interventional Cardiology.
- Does Guillermo A. Reyes accept Medicare assignment?
- Yes. Medicare's clinician data says Guillermo A. Reyes 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.
- What is the phone number for Guillermo A. Reyes?
- (210) 949-1300, as listed in official Medicare / NPI Registry data.
- What is Guillermo A. Reyes's NPI number?
- 1164544656. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Guillermo A. Reyes works
Medicare's Facility Affiliation Data lists Guillermo A. Reyes 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
Practice locations
Addresses where Guillermo A. Reyes is enrolled with Medicare (CMS data updated 2026-10-02).
- 8093 Eckhert RdSan Antonio, TX 78240 (210) 949‑1300
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Texas →
Other cardiologists in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164544656 |
| 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