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Family Practice

Lisa Nielsen, MD

Works at hospitals in Duluth, MN · Ashland, WI · Minnesota, Wisconsin

Summary

Dr. Lisa Nielsen, MD is a family doctor at 194 E Main St, Fort Kent, ME 04743. Phone: (207) 834-3155. Accepts Medicare assignment. In 2024, Lisa Nielsen had 98 Original Medicare patients and 142 services. NPI 1598706970. 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: 194 E Main St, Fort Kent, ME 04743 · Directions (2 more locations)
  • Phone: (207) 834‑3155
  • Medicare: Accepts Medicare assignment
  • Hospitals: St Lukes Hospital, Tamarack Health Ashland Medical Center
  • Group practice: St. Luke's Hospital of Duluth (+2 more)
  • Medical school: New York University School Of Medicine · graduated 1991 (35 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lisa 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 Lisa Nielsen accept Medicare assignment?
Yes. Medicare's clinician data says Lisa 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 Lisa Nielsen see?
In 2024, CMS data shows 98 Original Medicare patients and 142 services for Lisa Nielsen. This counts Original Medicare only and measures volume, not quality.
What is Lisa Nielsen's NPI number?
1598706970. 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 Lisa 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 patients98
Services billed to Medicare142
Different services or procedures9
Participating Medicare providerYes
Average age of these patients68

Most frequent services

  1. Hemoglobin a1c level (83036)59 services
  2. Urinalysis, manual test (81002)37 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)16 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 blood pressure75%
  • High cholesterol71%
  • Diabetes59%
  • Arthritis33%
  • Anxiety30%
  • Depression24%

Hospitals where Lisa Nielsen works

Medicare's Facility Affiliation Data lists Lisa 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.

  • St Lukes HospitalDuluth, MN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 240047
  • Tamarack Health Ashland Medical CenterAshland, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521359

Practice locations

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

Group practices

Medicare enrollment lists Lisa Nielsen as a member of these groups (CMS data updated October 2, 2026).

  • St. Luke's Hospital of Duluth405 clinicians in the group
  • Katahdin Valley Health Center67 clinicians in the group
  • Northern Maine Medical Center38 clinicians in the group

Specialties

Find other Family Practice doctors in Maine →

Other family doctors in Maine

Clinicians with the same Medicare primary specialty in Maine — not a recommendation.

All family doctors in Maine →

Other clinicians in St. Luke's Hospital of Duluth

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

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598706970
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