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Emergency Medicine

Krista Niezwaag, DO

Works at hospitals in Tucson, AZ · Dillon, MT · Bozeman, MT … · Arizona, Montana

Summary

Dr. Krista Niezwaag, DO is an emergency medicine doctor at 1625 N Campbell Ave, Tucson, AZ 85719. Phone: (520) 694-0111. Accepts Medicare assignment. NPI 1730589300. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Krista Niezwaag, 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 Krista Niezwaag accept Medicare assignment?
Yes. Medicare's clinician data says Krista Niezwaag 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 Krista Niezwaag's NPI number?
1730589300. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Krista Niezwaag works

Medicare's Facility Affiliation Data lists Krista Niezwaag 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 Krista Niezwaag is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Banner-University Medical Group1,072 clinicians in the group
  • Bozeman Health Deaconess Hospital320 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arizona →

Other emergency medicine doctors in Tucson

Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.

All emergency medicine doctors in Tucson →

Other clinicians in Banner-University Medical Group

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

Clinician information

CredentialDO
Graduation year2022 (4 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1730589300
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians