Quick answers
- Which hospitals does Joseph Gregory work at?
- Medicare's official clinician data lists Joseph Gregory at 1 hospital: INTEGRIS Grove Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Joseph Gregory see patients?
- Medicare's clinician data lists 3 practice locations, including Grove, OK and Vinita, OK. Call before your visit to confirm the address.
- What is Joseph Gregory's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Joseph Gregory accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph Gregory 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 Joseph Gregory?
- (918) 786-1909, as listed in official Medicare / NPI Registry data.
- What is Joseph Gregory's NPI number?
- 1891454062. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Joseph Gregory works
Medicare's Facility Affiliation Data lists Joseph Gregory at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- INTEGRIS Grove HospitalGrove, OK · Acute Care Hospital · CCN 370113
Practice locations
Addresses where Joseph Gregory is enrolled with Medicare (CMS data updated 2026-10-02).
- 10 E 13th St, INTEGRIS Express Care GroveGrove, OK 74344 (918) 786‑1909
- 1001 E 18th StGrove, OK 74344 (918) 786‑2243
- 216 S 7th St, 1 INTEGRIS Express Care VinitaVinita, OK 74301 (918) 256‑1500
Group practices
Medicare enrollment lists Joseph Gregory as a member of these groups (CMS data updated 2026-10-02).
- Emergency Services of Oklahoma PC66 clinicians in the group
- INTEGRIS Grove Hospital11 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Grove
Clinicians with the same Medicare primary specialty in Grove, OK — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891454062 |
| 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