Quick answers
- Does Cassandra J. Bommersbach accept Medicare assignment?
- Yes. Medicare's clinician data says Cassandra J. Bommersbach 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.
- How many Medicare patients does Cassandra J. Bommersbach see?
- In 2024, CMS data shows 11 Original Medicare patients and 12 services for Cassandra J. Bommersbach. This counts Original Medicare only and measures volume, not quality.
- What is Cassandra J. Bommersbach's NPI number?
- 1821831629. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Cassandra J. Bommersbach, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 11 |
|---|---|
| Services billed to Medicare | 12 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 64 |
Hospitals where Cassandra J. Bommersbach works
Medicare's Facility Affiliation Data lists Cassandra J. Bommersbach 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.
- Sanford Bagley Medical CenterBagley, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241328
- Sanford Bemidji Medical CenterBemidji, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240100
Practice locations
Addresses where Cassandra J. Bommersbach is enrolled with Medicare (CMS data updated October 2, 2026).
- 1233 34th St NWBemidji, MN 56601 (218) 333‑5522
- 1611 Anne St NWBemidji, MN 56601 (218) 333‑5000
- 1656 Central St WBagley, MN 56621 (218) 694‑2384
- 1656 Central St W, Suite ABagley, MN 56621 (218) 694‑2442
Group practices
Medicare enrollment lists Cassandra J. Bommersbach as a member of this group (CMS data updated October 2, 2026).
- Sanford Health of Northern Minnesota343 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Bemidji
Clinicians with the same Medicare primary specialty in Bemidji, MN — not a recommendation.
Other clinicians in Sanford Health of Northern Minnesota
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2024 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821831629 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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