Quick answers
- Does Austen G. Roselius accept Medicare assignment?
- Yes. Medicare's clinician data says Austen G. Roselius accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Austen G. Roselius's NPI number?
- 1588246094. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Austen G. Roselius works
Medicare's Facility Affiliation Data lists Austen G. Roselius at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Essentia Health FosstonFosston, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241357
- Mille Lacs Health SystemOnamia, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241356
Practice locations
Addresses where Austen G. Roselius is enrolled with Medicare (CMS data updated October 2, 2026).
- 200 Elm St NOnamia, MN 56359 (320) 532‑3154
Group practices
Medicare enrollment lists Austen G. Roselius as a member of this group (CMS data updated October 2, 2026).
- Mille Lacs Health System47 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Onamia
Clinicians with the same Medicare primary specialty in Onamia, MN — not a recommendation.
Other clinicians in Mille Lacs Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588246094 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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