Quick answers
- Which hospitals does Allison Hagen work at?
- Medicare's official clinician data lists Allison Hagen at 5 hospitals: Cherokee Nation W W Hastings Indian Hospital, Oklahoma Surgical Hospital, LLC, Saint Francis Hospital Muskogee, Saint Francis Hospital, Inc and St John Owasso. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Allison Hagen see patients?
- Medicare's clinician data lists 2 practice locations, including Tulsa, OK and Fort Smith, AR. Call before your visit to confirm the address.
- What is Allison Hagen's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Allison Hagen accept Medicare assignment?
- Yes. Medicare's clinician data says Allison Hagen 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 Allison Hagen?
- (918) 749-8765, as listed in official Medicare / NPI Registry data.
- What is Allison Hagen's NPI number?
- 1326659368. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Allison Hagen works
Medicare's Facility Affiliation Data lists Allison Hagen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK · Acute Care Hospital · CCN 370171
- Oklahoma Surgical Hospital, LLCTulsa, OK · Acute Care Hospital · CCN 370210
- Saint Francis Hospital MuskogeeMuskogee, OK · Acute Care Hospital · CCN 370025
- Saint Francis Hospital, IncTulsa, OK · Acute Care Hospital · CCN 370091
- St John OwassoOwasso, OK · Acute Care Hospital · CCN 370227
Practice locations
Addresses where Allison Hagen is enrolled with Medicare (CMS data updated 2026-10-02).
- 10901 E 48th StTulsa, OK 74146 (918) 749‑8765
- 6801 Rogers Ave, Suite 202Fort Smith, AR 72903 (918) 749‑8765
Group practices
Medicare enrollment lists Allison Hagen as a member of this group (CMS data updated 2026-10-02).
- Urologic Specialists of Oklahoma Inc47 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Tulsa
Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326659368 |
| 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