Quick answers
- Which hospitals does Mary G. Barnes work at?
- Medicare's official clinician data lists Mary G. Barnes at 2 hospitals: Elkview General Hospital and Mangum Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary G. Barnes see patients?
- Medicare's clinician data lists 1 practice location in Mangum, OK. Call before your visit to confirm the address.
- What is Mary G. Barnes's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mary G. Barnes accept Medicare assignment?
- Yes. Medicare's clinician data says Mary G. Barnes 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 Mary G. Barnes?
- (580) 782-3353, as listed in official Medicare / NPI Registry data.
- What is Mary G. Barnes's NPI number?
- 1104165067. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary G. Barnes works
Medicare's Facility Affiliation Data lists Mary G. Barnes at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Elkview General HospitalHobart, OK · Rural Emergency Hospital · CCN 370783
- Mangum Regional Medical CenterMangum, OK · Critical Access Hospital · CCN 371330
Practice locations
Addresses where Mary G. Barnes is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Wickersham StMangum, OK 73554 (580) 782‑3353
Group practices
Medicare enrollment lists Mary G. Barnes as a member of this group (CMS data updated 2026-10-02).
- Mangum City Hospital Authority10 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Mangum
Clinicians with the same Medicare primary specialty in Mangum, OK — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104165067 |
| 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