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Internal Medicine

Rosaline K. Begay, MD

Sees patients in Lame Deer, MT · Montana

Summary

Dr. Rosaline K. Begay, MD is an internal medicine doctor at 100 Cheyenne Ave, Lame Deer, MT 59043. Phone: (406) 477-4451. Accepts Medicare assignment. NPI 1134291479. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 100 Cheyenne Ave, Lame Deer, MT 59043 · Directions
  • Phone: (406) 477‑4451
  • Medicare: Accepts Medicare assignment
  • Group practice: US Health Dept of Health and Human Services
  • Medical school: University Of New Mexico School Of Medicine · graduated 1997 (29 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Rosaline K. Begay, 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 Rosaline K. Begay accept Medicare assignment?
Yes. Medicare's clinician data says Rosaline K. Begay 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.
What is Rosaline K. Begay's NPI number?
1134291479. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Rosaline K. Begay is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rosaline K. Begay as a member of this group (CMS data updated October 2, 2026).

  • US Health Dept of Health and Human Services94 clinicians in the group

Specialties

Find other Internal Medicine doctors in Montana →

Other internal medicine doctors in Montana

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

All internal medicine doctors in Montana →

Other clinicians in US Health Dept of Health and Human Services

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

Clinician information

CredentialMD
Medical schoolUniversity Of New Mexico School Of Medicine
Graduation year1997 (29 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134291479
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians