Quick answers
- Which hospitals does Isaac B. Gray work at?
- Medicare's official clinician data lists Isaac B. Gray at 2 hospitals: Mercy Hospital Logan County and Mercy Hospital Oklahoma City, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Isaac B. Gray see patients?
- Medicare's clinician data lists 3 practice locations, including Oklahoma City, OK. Call before your visit to confirm the address.
- What is Isaac B. Gray's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Isaac B. Gray accept Medicare assignment?
- Yes. Medicare's clinician data says Isaac B. Gray 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 Isaac B. Gray?
- (405) 936-5455, as listed in official Medicare / NPI Registry data.
- What is Isaac B. Gray's NPI number?
- 1164063699. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Isaac B. Gray works
Medicare's Facility Affiliation Data lists Isaac B. Gray at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital Logan CountyGuthrie, OK · Critical Access Hospital · CCN 371317
- Mercy Hospital Oklahoma City, IncOklahoma City, OK · Acute Care Hospital · CCN 370013
Practice locations
Addresses where Isaac B. Gray is enrolled with Medicare (CMS data updated 2026-10-02).
- 4300 McAuley BlvdOklahoma City, OK 73120 (405) 936‑5455
- 4300 W Memorial RdOklahoma City, OK 73120 (405) 755‑1515
- 5200 E I 240 Service Rd, Suite 330Oklahoma City, OK 73135 (405) 755‑4290
Group practices
Medicare enrollment lists Isaac B. Gray as a member of this group (CMS data updated 2026-10-02).
- Mercy Clinic Oklahoma Communities649 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164063699 |
| 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