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Anesthesiology

Kirk N. Rossiter, MD

Works at hospitals in Whitefish, MT · Kalispell, MT · Cedar Rapids, IA · Montana, Iowa

Summary

Dr. Kirk N. Rossiter, MD is an anesthesiologist at 1600 Hospital Way, Whitefish, MT 59937. Phone: (406) 863-3500. Accepts Medicare assignment. In 2024, Kirk N. Rossiter had 113 Original Medicare patients and 140 services. NPI 1821289950. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Kirk N. Rossiter, 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 Kirk N. Rossiter accept Medicare assignment?
Yes. Medicare's clinician data says Kirk N. Rossiter 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 Kirk N. Rossiter see?
In 2024, CMS data shows 113 Original Medicare patients and 140 services for Kirk N. Rossiter. This counts Original Medicare only and measures volume, not quality.
What is Kirk N. Rossiter's NPI number?
1821289950. 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 Kirk N. Rossiter, 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 patients113
Services billed to Medicare140
Different services or procedures42
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)20 services
  2. Anesthesia for other procedure on large bowel using an endoscope (00811)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 pressure65%
  • High cholesterol62%
  • Arthritis53%
  • Ischemic heart disease37%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)27%
  • Atrial fibrillation25%

Hospitals where Kirk N. Rossiter works

Medicare's Facility Affiliation Data lists Kirk N. Rossiter 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.

Practice locations

Addresses where Kirk N. Rossiter is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kirk N. Rossiter as a member of these groups (CMS data updated October 2, 2026).

  • Mercy Medical Center305 clinicians in the group
  • Logan Health - Whitefish46 clinicians in the group
  • Northern Rockies Anesthesia Consultants PLLC35 clinicians in the group

Specialties

Find other Anesthesiology doctors in Montana →

Other anesthesiologists in Whitefish

Clinicians with the same Medicare primary specialty in Whitefish, MT — not a recommendation.

All anesthesiologists in Whitefish →

Other clinicians in Mercy Medical Center

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

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In New Orleans
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821289950
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