Quick answers
- Which hospitals does Gregory M. Olszewski work at?
- Medicare's official clinician data lists Gregory M. Olszewski at 5 hospitals: Aspirus Lake View Hospital, Chippewa County Hospital, North Shore Health, Sanford Thief River Falls Medical Center and United Hospital District. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory M. Olszewski see patients?
- Medicare's clinician data lists 1 practice location in Thief River Falls, MN. Call before your visit to confirm the address.
- What is Gregory M. Olszewski's specialty?
- Medicare lists Family Practice as the primary specialty, and also Emergency Medicine.
- Does Gregory M. Olszewski accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory M. Olszewski 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 Gregory M. Olszewski?
- (218) 683-2725, as listed in official Medicare / NPI Registry data.
- What is Gregory M. Olszewski's NPI number?
- 1952741050. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory M. Olszewski works
Medicare's Facility Affiliation Data lists Gregory M. Olszewski at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aspirus Lake View HospitalTwo Harbors, MN · Critical Access Hospital · CCN 241308
- Chippewa County HospitalMontevideo, MN · Critical Access Hospital · CCN 241325
- North Shore HealthGrand Marais, MN · Critical Access Hospital · CCN 241317
- Sanford Thief River Falls Medical CenterThief River Falls, MN · Critical Access Hospital · CCN 241381
- United Hospital DistrictBlue Earth, MN · Critical Access Hospital · CCN 241369
Practice locations
Addresses where Gregory M. Olszewski is enrolled with Medicare (CMS data updated 2026-10-02).
- 3001 Sanford PkwyThief River Falls, MN 56701 (218) 683‑2725
Group practices
Medicare enrollment lists Gregory M. Olszewski as a member of this group (CMS data updated 2026-10-02).
- Sanford Health Network North116 clinicians in the group
Specialties
- Family Practiceprimary
- Emergency Medicinealso
Other family doctors in Thief River Falls
Clinicians with the same Medicare primary specialty in Thief River Falls, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952741050 |
| 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