Quick answers
- Which hospitals does Grant R. Cox work at?
- Medicare's official clinician data lists Grant R. Cox at 3 hospitals: Ascension St John Medical Center, Oklahoma Surgical Hospital, LLC and St John Owasso. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Grant R. Cox see patients?
- Medicare's clinician data lists 1 practice location in Tulsa, OK. Call before your visit to confirm the address.
- What is Grant R. Cox's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Grant R. Cox accept Medicare assignment?
- Yes. Medicare's clinician data says Grant R. Cox 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 Grant R. Cox?
- (918) 712-8700, as listed in official Medicare / NPI Registry data.
- What is Grant R. Cox's NPI number?
- 1366532871. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Grant R. Cox works
Medicare's Facility Affiliation Data lists Grant R. Cox at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension St John Medical CenterTulsa, OK · Acute Care Hospital · CCN 370114
- Oklahoma Surgical Hospital, LLCTulsa, OK · Acute Care Hospital · CCN 370210
- St John OwassoOwasso, OK · Acute Care Hospital · CCN 370227
Practice locations
Addresses where Grant R. Cox is enrolled with Medicare (CMS data updated 2026-10-02).
- 1919 S Wheeling Ave, Suite 700Tulsa, OK 74104 (918) 712‑8700
Group practices
Medicare enrollment lists Grant R. Cox as a member of this group (CMS data updated 2026-10-02).
- Ob Gyn Specialists of Tulsa PLLC6 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Tulsa
Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366532871 |
| 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