Quick answers
- Which hospitals does John G. Horner work at?
- Medicare's official clinician data lists John G. Horner at 4 hospitals: Clay County Memorial Hospital, Graham Regional Medical Center, Hamilton Hospital and United Regional Health Care System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John G. Horner see patients?
- Medicare's clinician data lists 2 practice locations, including Llano, TX and Olney, TX. Call before your visit to confirm the address.
- What is John G. Horner's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does John G. Horner accept Medicare assignment?
- Medicare's clinician data says John G. Horner may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for John G. Horner?
- (325) 247-5040, as listed in official Medicare / NPI Registry data.
- What is John G. Horner's NPI number?
- 1598997298. 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 G. Horner works
Medicare's Facility Affiliation Data lists John G. Horner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Clay County Memorial HospitalHenrietta, TX · Critical Access Hospital · CCN 451362
- Graham Regional Medical CenterGraham, TX · Critical Access Hospital · CCN 671300
- Hamilton HospitalOlney, TX · Critical Access Hospital · CCN 451354
- United Regional Health Care SystemWichita Falls, TX · Acute Care Hospital · CCN 450010
Practice locations
Addresses where John G. Horner is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 W Ollie StLlano, TX 78643 (325) 247‑5040
- 901 W Hamilton St, Hamilton Hospital Medical AssociatesOlney, TX 76374 (940) 564‑5521
Group practices
Medicare enrollment lists John G. Horner as a member of these groups (CMS data updated 2026-10-02).
- Concord Medical Group of Texas PLLC321 clinicians in the group
- Olney-Hamilton Hospital District15 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Llano
Clinicians with the same Medicare primary specialty in Llano, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1598997298 |
| 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