Quick answers
- Which hospitals does James R. Petersen work at?
- Medicare's official clinician data lists James R. Petersen at 3 hospitals: Duncan Regional Hospital, Inc, Harmon Memorial Hospital and Jefferson County Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James R. Petersen see patients?
- Medicare's clinician data lists 1 practice location in Hollis, OK. Call before your visit to confirm the address.
- What is James R. Petersen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does James R. Petersen accept Medicare assignment?
- Yes. Medicare's clinician data says James R. Petersen 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 James R. Petersen?
- (580) 688-3363, as listed in official Medicare / NPI Registry data.
- What is James R. Petersen's NPI number?
- 1992145098. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James R. Petersen works
Medicare's Facility Affiliation Data lists James R. Petersen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Duncan Regional Hospital, IncDuncan, OK · Acute Care Hospital · CCN 370023
- Harmon Memorial HospitalHollis, OK · Critical Access Hospital · CCN 371338
- Jefferson County HospitalWaurika, OK · Critical Access Hospital · CCN 371311
Practice locations
Addresses where James R. Petersen is enrolled with Medicare (CMS data updated 2026-10-02).
- 400 E Chestnut StHollis, OK 73550 (580) 688‑3363
Group practices
Medicare enrollment lists James R. Petersen as a member of this group (CMS data updated 2026-10-02).
- Jackson County Memorial Hospital Authority62 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Oklahoma
Clinicians with the same Medicare primary specialty in Oklahoma — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992145098 |
| 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