Quick answers
- Which hospitals does William Lyan work at?
- Medicare's official clinician data lists William Lyan at 5 hospitals: Alexandria Hospital, CHRISTUS St Frances Cabrini Hospital, Hardtner Medical Center, Rapides Regional Medical Center and Riverland Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Lyan see patients?
- Medicare's clinician data lists 1 practice location in Alexandria, LA. Call before your visit to confirm the address.
- What is William Lyan's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does William Lyan accept Medicare assignment?
- Yes. Medicare's clinician data says William Lyan 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 Lyan?
- (318) 487-1122, as listed in official Medicare / NPI Registry data.
- What is William Lyan's NPI number?
- 1518450154. 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 Lyan works
Medicare's Facility Affiliation Data lists William Lyan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alexandria HospitalAlexandria, LA · Acute Care Hospital · CCN 190319
- CHRISTUS St Frances Cabrini HospitalAlexandria, LA · Acute Care Hospital · CCN 190019
- Hardtner Medical CenterOlla, LA · Critical Access Hospital · CCN 191315
- Rapides Regional Medical CenterAlexandria, LA · Acute Care Hospital · CCN 190026
- Riverland Medical CenterFerriday, LA · Critical Access Hospital · CCN 191318
Practice locations
Addresses where William Lyan is enrolled with Medicare (CMS data updated 2026-10-02).
- 3330 Masonic DrAlexandria, LA 71301 (318) 487‑1122
Group practices
Medicare enrollment lists William Lyan as a member of this group (CMS data updated 2026-10-02).
- Central Louisiana Physicians, LLC54 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Alexandria
Clinicians with the same Medicare primary specialty in Alexandria, LA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518450154 |
| 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