Quick answers
- Does Margaret Mary D. Hayman accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret Mary D. Hayman accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Margaret Mary D. Hayman's NPI number?
- 1477532679. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Margaret Mary D. Hayman works
Medicare's Facility Affiliation Data lists Margaret Mary D. Hayman at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Holzer Medical CenterGallipolis, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360054
- OhioHealth O'Bleness HospitalAthens, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360014
Practice locations
Addresses where Margaret Mary D. Hayman is enrolled with Medicare (CMS data updated October 2, 2026).
- 112 E Memorial DrPomeroy, OH 45769 (740) 992‑2192
- 41865 Pomeroy PikePomeroy, OH 45769 (740) 992‑0540
Group practices
Medicare enrollment lists Margaret Mary D. Hayman as a member of this group (CMS data updated October 2, 2026).
- Hopewell Health Centers, Inc.54 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Pomeroy
Clinicians with the same Medicare primary specialty in Pomeroy, OH — not a recommendation.
Other clinicians in Hopewell Health Centers, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477532679 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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