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Anesthesiology

Janel L. Nielsen, DO

Works at hospitals in York, ME · Maine

Summary

Dr. Janel L. Nielsen, DO is an anesthesiologist at 15 Hospital Dr, York, ME 03909. Phone: (207) 363-4321. Accepts Medicare assignment. In 2024, Janel L. Nielsen had 168 Original Medicare patients and 178 services. NPI 1477743771. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 15 Hospital Dr, York, ME 03909 · Directions
  • Phone: (207) 363‑4321
  • Medicare: Accepts Medicare assignment
  • Hospital: York Hospital
  • Group practice: York Hospital
  • Medical school: Des Moines University Of Osteopathic Medicine And Health Sciences · graduated 2006 (20 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Janel L. 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 Janel L. Nielsen accept Medicare assignment?
Yes. Medicare's clinician data says Janel L. 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 Janel L. Nielsen see?
In 2024, CMS data shows 168 Original Medicare patients and 178 services for Janel L. Nielsen. This counts Original Medicare only and measures volume, not quality.
What is Janel L. Nielsen's NPI number?
1477743771. 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 Janel L. 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 patients168
Services billed to Medicare178
Different services or procedures32
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Anesthesia for exam of colon using an endoscope (00812)39 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)28 services
  3. Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)21 services
  4. Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)19 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 pressure70%
  • High cholesterol69%
  • Arthritis46%
  • Ischemic heart disease25%
  • Diabetes24%
  • Anxiety24%

Hospitals where Janel L. Nielsen works

Medicare's Facility Affiliation Data lists Janel L. 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.

  • York HospitalYork, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200020

Practice locations

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

Group practices

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

  • York Hospital198 clinicians in the group

Specialties

Find other Anesthesiology doctors in Maine →

Other anesthesiologists in York

Clinicians with the same Medicare primary specialty in York, ME — not a recommendation.

All anesthesiologists in York →

Other clinicians in York Hospital

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

Clinician information

CredentialDO
Medical schoolDes Moines University Of Osteopathic Medicine And Health Sciences
Graduation year2006 (20 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477743771
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