Quick answers
- Which hospitals does Matthew J. Nielsen work at?
- Medicare's official clinician data lists Matthew J. Nielsen at 3 hospitals: Lakewood Health Center, Sanford Bemidji Medical Center and Sanford Medical Center Fargo. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew J. Nielsen see patients?
- Medicare's clinician data lists 4 practice locations, including Bemidji, MN and Baudette, MN. Call before your visit to confirm the address.
- What is Matthew J. Nielsen's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Matthew J. Nielsen accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew J. Nielsen 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 Matthew J. Nielsen?
- (218) 333-5522, as listed in official Medicare / NPI Registry data.
- What is Matthew J. Nielsen's NPI number?
- 1235442575. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew J. Nielsen works
Medicare's Facility Affiliation Data lists Matthew J. Nielsen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lakewood Health CenterBaudette, MN · Critical Access Hospital · CCN 241301
- Sanford Bemidji Medical CenterBemidji, MN · Acute Care Hospital · CCN 240100
- Sanford Medical Center FargoFargo, ND · Acute Care Hospital · CCN 350011
Practice locations
Addresses where Matthew J. Nielsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1233 34th St NWBemidji, MN 56601 (218) 333‑5522
- 1300 Anne St NWBemidji, MN 56601 (218) 333‑5000
- 1611 Anne St NWBemidji, MN 56601 (218) 333‑5000
- 600 Main Ave SBaudette, MN 56623 (218) 333‑5100
Group practices
Medicare enrollment lists Matthew J. Nielsen as a member of this group (CMS data updated 2026-10-02).
- Sanford Health of Northern Minnesota343 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Bemidji
Clinicians with the same Medicare primary specialty in Bemidji, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Michigan State University College Of Human Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235442575 |
| 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