Quick answers
- Which hospitals does Holly L. Armstrong work at?
- Medicare's official clinician data lists Holly L. Armstrong at 1 hospital: University of Mississippi Medical Center- Grenada. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Holly L. Armstrong see patients?
- Medicare's clinician data lists 3 practice locations, including Oxford, MS and Lexington, MS. Call before your visit to confirm the address.
- What is Holly L. Armstrong's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Holly L. Armstrong accept Medicare assignment?
- Yes. Medicare's clinician data says Holly L. Armstrong 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 Holly L. Armstrong?
- (662) 232-8100, as listed in official Medicare / NPI Registry data.
- What is Holly L. Armstrong's NPI number?
- 1124062930. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Holly L. Armstrong works
Medicare's Facility Affiliation Data lists Holly L. Armstrong at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of Mississippi Medical Center- GrenadaGrenada, MS · Acute Care Hospital · CCN 250168
Practice locations
Addresses where Holly L. Armstrong is enrolled with Medicare (CMS data updated 2026-10-02).
- 1100 Belk BlvdOxford, MS 38655 (662) 232‑8100
- 1929 University AveOxford, MS 38655 (662) 236‑2232
- 239 Bowling Green RdLexington, MS 39095 (662) 834‑1321
Group practices
Medicare enrollment lists Holly L. Armstrong as a member of these groups (CMS data updated 2026-10-02).
- Grenada Emergency Group, LLC36 clinicians in the group
- United Emergency Services Inc.35 clinicians in the group
- Oxford After Hours Clinic, LLC6 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Oxford
Clinicians with the same Medicare primary specialty in Oxford, MS — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124062930 |
| 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