Quick answers
- Which hospitals does Martha L. Walker work at?
- Medicare's official clinician data lists Martha L. Walker at 2 hospitals: Arnot Ogden Medical Center and Corning Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Martha L. Walker see patients?
- Medicare's clinician data lists 1 practice location in Elmira, NY. Call before your visit to confirm the address.
- What is Martha L. Walker's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Martha L. Walker accept Medicare assignment?
- Yes. Medicare's clinician data says Martha L. Walker 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 Martha L. Walker?
- (607) 737-7012, as listed in official Medicare / NPI Registry data.
- What is Martha L. Walker's NPI number?
- 1366714339. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Martha L. Walker works
Medicare's Facility Affiliation Data lists Martha L. Walker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Arnot Ogden Medical CenterElmira, NY · Acute Care Hospital · CCN 330090
- Corning HospitalCorning, NY · Acute Care Hospital · CCN 330277
Practice locations
Addresses where Martha L. Walker is enrolled with Medicare (CMS data updated 2026-10-02).
- 571 Saint Josephs Blvd, Suite 304Elmira, NY 14901 (607) 737‑7012
Group practices
Medicare enrollment lists Martha L. Walker as a member of this group (CMS data updated 2026-10-02).
- Arnot Medical Services PLLC83 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Elmira
Clinicians with the same Medicare primary specialty in Elmira, NY — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366714339 |
| 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