Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Allan M. Nielsen, MD

Works at hospitals in Grand Forks, ND · North Dakota

Summary

Dr. Allan M. Nielsen, MD is a family doctor at 1200 S Columbia Rd, Grand Forks, ND 58201. Phone: (701) 780-5000. Accepts Medicare assignment. In 2024, Allan M. Nielsen had 273 Original Medicare patients and 907 services. NPI 1063430122. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 1200 S Columbia Rd, Grand Forks, ND 58201 · Directions (2 more locations)
  • Phone: (701) 780‑5000
  • Medicare: Accepts Medicare assignment
  • Hospital: Altru Hospital
  • Group practice: Altru Health System
  • Medical school: University Of North Dakota School Of Medicine · graduated 1997 (29 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Allan M. Nielsen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Allan M. Nielsen accept Medicare assignment?
Yes. Medicare's clinician data says Allan M. Nielsen 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 Allan M. Nielsen see?
In 2024, CMS data shows 273 Original Medicare patients and 907 services for Allan M. Nielsen. This counts Original Medicare only and measures volume, not quality.
What is Allan M. Nielsen's NPI number?
1063430122. 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 Allan M. Nielsen, 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 patients273
Services billed to Medicare907
Different services or procedures46
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)358 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)141 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)135 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)46 services
  5. Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (G0438)24 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 cholesterol71%
  • High blood pressure70%
  • Arthritis33%
  • Ischemic heart disease31%
  • Diabetes27%
  • Chronic kidney disease20%

Hospitals where Allan M. Nielsen works

Medicare's Facility Affiliation Data lists Allan M. Nielsen 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.

  • Altru HospitalGrand Forks, ND · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 350019

Practice locations

Addresses where Allan M. Nielsen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Allan M. Nielsen as a member of this group (CMS data updated October 2, 2026).

  • Altru Health System684 clinicians in the group

Specialties

Find other Family Practice doctors in North Dakota →

Other family doctors in Grand Forks

Clinicians with the same Medicare primary specialty in Grand Forks, ND — not a recommendation.

All family doctors in Grand Forks →

Other clinicians in Altru Health System

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of North Dakota School Of Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063430122
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians