Quick answers
- Which hospitals does James J. Ohearn work at?
- Medicare's official clinician data lists James J. Ohearn at 3 hospitals: Lakewood Health System, Mille Lacs Health System and Riverwood Healthcare Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James J. Ohearn see patients?
- Medicare's clinician data lists 2 practice locations, including Onamia, MN. Call before your visit to confirm the address.
- What is James J. Ohearn's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does James J. Ohearn accept Medicare assignment?
- Yes. Medicare's clinician data says James J. Ohearn 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 James J. Ohearn's NPI number?
- 1467483776. 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 J. Ohearn works
Medicare's Facility Affiliation Data lists James J. Ohearn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lakewood Health SystemStaples, MN · Critical Access Hospital · CCN 241329
- Mille Lacs Health SystemOnamia, MN · Critical Access Hospital · CCN 241356
- Riverwood Healthcare CenterAitkin, MN · Critical Access Hospital · CCN 241305
Practice locations
Addresses where James J. Ohearn is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 Elm St NOnamia, MN 56359
- 200 Elm St N, PO Box AOnamia, MN 56359
Group practices
Medicare enrollment lists James J. Ohearn as a member of this group (CMS data updated 2026-10-02).
- Mille Lacs Health System47 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1467483776 |
| 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