Quick answers
- Which hospitals does Robert A. Zimmerman Jr. work at?
- Medicare's official clinician data lists Robert A. Zimmerman Jr. at 3 hospitals: Mercy Hospital Kingfisher, Inc, 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 Robert A. Zimmerman Jr. see patients?
- Medicare's clinician data lists 3 practice locations, including Oklahoma City, OK. Call before your visit to confirm the address.
- What is Robert A. Zimmerman Jr.'s specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Robert A. Zimmerman Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Robert A. Zimmerman Jr. 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 Robert A. Zimmerman Jr.?
- (405) 936-5455, as listed in official Medicare / NPI Registry data.
- What is Robert A. Zimmerman Jr.'s NPI number?
- 1376313643. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert A. Zimmerman Jr. works
Medicare's Facility Affiliation Data lists Robert A. Zimmerman Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital Kingfisher, IncKingfisher, OK · Critical Access Hospital · CCN 371313
- 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 Robert A. Zimmerman Jr. 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 Robert A. Zimmerman Jr. 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 | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376313643 |
| 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