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Nurse Practitioner

Kimberly A. Oszust, NP

Sees patients in Phoenix, AZ · Flagstaff, AZ · Arizona

Summary

Kimberly A. Oszust, NP is a nurse practitioner at 20950 N Tatum Blvd, Suite 350, Phoenix, AZ 85050. Phone: (888) 209-8874. Accepts Medicare assignment. In 2024, Kimberly A. Oszust had 33 Original Medicare patients and 56 services. NPI 1861130312. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Nurse practitioner
  • Address: 20950 N Tatum Blvd, Suite 350, Phoenix, AZ 85050 · Directions (1 more location)
  • Phone: (888) 209‑8874
  • Medicare: Accepts Medicare assignment
  • Group practice: Aleracare Aic LLC
  • School: graduated 2022
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kimberly A. Oszust, 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 Kimberly A. Oszust accept Medicare assignment?
Yes. Medicare's clinician data says Kimberly A. Oszust 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 Kimberly A. Oszust see?
In 2024, CMS data shows 33 Original Medicare patients and 56 services for Kimberly A. Oszust. This counts Original Medicare only and measures volume, not quality.
What is Kimberly A. Oszust's NPI number?
1861130312. 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 Kimberly A. Oszust, 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 patients33
Services billed to Medicare56
Different services or procedures23
Participating Medicare providerYes
Average age of these patients71

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 cholesterol73%
  • Arthritis48%
  • Diabetes33%

Practice locations

Addresses where Kimberly A. Oszust is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kimberly A. Oszust as a member of this group (CMS data updated October 2, 2026).

  • Aleracare Aic LLC17 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Arizona →

Other nurse practitioners in Phoenix

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

All nurse practitioners in Phoenix →

Other clinicians in Aleracare Aic LLC

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

Clinician information

CredentialNP
Graduation year2022
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861130312
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians