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Physician Assistant

Natalia N. Desrosiers, PA

Works at hospitals in Mesa, AZ · Arizona

Summary

Natalia N. Desrosiers, PA is a physician assistant at 10401 W Thunderbird Blvd, Sun City, AZ 85351. Phone: (623) 832-4000. Accepts Medicare assignment. In 2024, Natalia N. Desrosiers had 203 Original Medicare patients and 2,921 services. NPI 1275248171. 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: Physician assistant
  • Address: 10401 W Thunderbird Blvd, Sun City, AZ 85351 · Directions (4 more locations)
  • Phone: (623) 832‑4000
  • Medicare: Accepts Medicare assignment
  • Hospital: Banner Baywood Medical Center
  • Group practice: Banner Physician Specialists Arizona LLC
  • School: graduated 2022
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Natalia N. Desrosiers, 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 Natalia N. Desrosiers accept Medicare assignment?
Yes. Medicare's clinician data says Natalia N. Desrosiers 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 Natalia N. Desrosiers see?
In 2024, CMS data shows 203 Original Medicare patients and 2,921 services for Natalia N. Desrosiers. This counts Original Medicare only and measures volume, not quality.
What is Natalia N. Desrosiers's NPI number?
1275248171. 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 Natalia N. Desrosiers, 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 patients203
Services billed to Medicare2,921
Different services or procedures36
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg (J7325)1,392 services
  2. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)988 services
  3. Aspiration and/or injection of fluid from large joint (20610)121 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)86 services
  5. Computer-assisted surgery for muscle and bone procedure (20985)53 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 cholesterol75%
  • Arthritis75%
  • High blood pressure74%
  • Ischemic heart disease30%
  • Diabetes28%
  • Chronic kidney disease26%

Hospitals where Natalia N. Desrosiers works

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

Group practices

Medicare enrollment lists Natalia N. Desrosiers as a member of this group (CMS data updated October 2, 2026).

  • Banner Physician Specialists Arizona LLC373 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Arizona →

Other physician assistants in Sun City

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

All physician assistants in Sun City →

Other clinicians in Banner Physician Specialists Arizona LLC

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

Clinician information

CredentialPA
Graduation year2022
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275248171
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