Quick answers
- Which hospitals does William G. Horstman work at?
- Medicare's official clinician data lists William G. Horstman at 5 hospitals: Baylor Medical Center at Trophy Club, Baylor Scott & White Medical Center Grapevine, Baylor Scott and White All Saints Medical Center, CHRISTUS St Michael Health System and Texas Health Huguley Hospital Fort Worth South. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William G. Horstman see patients?
- Medicare's clinician data lists 2 practice locations, including Houston, TX and Silverthorne, CO. Call before your visit to confirm the address.
- What is William G. Horstman's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does William G. Horstman accept Medicare assignment?
- Yes. Medicare's clinician data says William G. Horstman 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 William G. Horstman?
- (512) 949-9010, as listed in official Medicare / NPI Registry data.
- What is William G. Horstman's NPI number?
- 1194705137. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William G. Horstman works
Medicare's Facility Affiliation Data lists William G. Horstman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baylor Medical Center at Trophy ClubTrophy Club, TX · Acute Care Hospital · CCN 450883
- Baylor Scott & White Medical Center GrapevineGrapevine, TX · Acute Care Hospital · CCN 450563
- Baylor Scott and White All Saints Medical CenterFort Worth, TX · Acute Care Hospital · CCN 450137
- CHRISTUS St Michael Health SystemTexarkana, TX · Acute Care Hospital · CCN 450801
- Texas Health Huguley Hospital Fort Worth SouthFort Worth, TX · Acute Care Hospital · CCN 450677
Practice locations
Addresses where William G. Horstman is enrolled with Medicare (CMS data updated 2026-10-02).
- 11906 Gallant Ridge LnHouston, TX 77082 (512) 949‑9010
- 1230 Golden Eagle RdSilverthorne, CO 80498 (817) 269‑1496
Group practices
Medicare enrollment lists William G. Horstman as a member of this group (CMS data updated 2026-10-02).
- Radiology Associates of North Texas PA346 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194705137 |
| 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