Quick answers
- Does Matthew J. Nelsen accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew J. Nelsen 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 Matthew J. Nelsen see?
- In 2024, CMS data shows 507 Original Medicare patients and 4,630 services for Matthew J. Nelsen. This counts Original Medicare only and measures volume, not quality.
- What is Matthew J. Nelsen's NPI number?
- 1699727958. 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 Matthew J. Nelsen, 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 | 507 |
|---|---|
| Services billed to Medicare | 4,630 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)3,200 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)367 services
- Aspiration and/or injection of fluid from large joint (20610)162 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)106 services
- Complete ultrasound scan of joint (76881)81 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- Arthritis75%
- High blood pressure73%
- Depression27%
- Diabetes26%
- Anxiety26%
Hospitals where Matthew J. Nelsen works
Medicare's Facility Affiliation Data lists Matthew J. Nelsen 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 St Marys - Detroit LakesDetroit Lakes, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 240101
- Perham HealthPerham, MN · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 241373
- Sanford Medical Center FargoFargo, ND · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 350011
Practice locations
Addresses where Matthew J. Nelsen is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1000 Coney St WPerham, MN 56573 (218) 347‑1200
- 1000 Coney St W, Suite 61Perham, MN 56573 (218) 347‑1200
- 1220 Sheyenne StWest Fargo, ND 58078 (701) 234‑4445
- 1412 Main StHawley, MN 56549 (218) 483‑3564
- 1720 University Dr SFargo, ND 58103 (701) 234‑2000
Group practices
Medicare enrollment lists Matthew J. Nelsen as a member of this group (CMS data updated October 2, 2026).
- Sanford Medical Center Fargo1,225 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Other clinicians in Sanford Medical Center Fargo
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Dakota School Of Medicine |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699727958 |
| 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