Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Physician Assistant

Claire M. Brzeski, PA

Works at hospitals in La Mesa, CA · California

Summary

Claire M. Brzeski, PA is a physician assistant at 8851 Ctr Dr, Suite 600, La Mesa, CA 91942. Phone: (619) 740-5724. Accepts Medicare assignment. In 2024, Claire M. Brzeski had 117 Original Medicare patients and 126 services. NPI 1467961599. 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: 8851 Ctr Dr, Suite 600, La Mesa, CA 91942 · Directions
  • Phone: (619) 740‑5724
  • Medicare: Accepts Medicare assignment
  • Hospital: Grossmont Hospital
  • Group practice: Clinic Services of California Medical Group Inc
  • School: graduated 2017
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Claire M. Brzeski, 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 Claire M. Brzeski accept Medicare assignment?
Yes. Medicare's clinician data says Claire M. Brzeski 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 Claire M. Brzeski see?
In 2024, CMS data shows 117 Original Medicare patients and 126 services for Claire M. Brzeski. This counts Original Medicare only and measures volume, not quality.
What is Claire M. Brzeski's NPI number?
1467961599. 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 Claire M. Brzeski, 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 patients117
Services billed to Medicare126
Different services or procedures19
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)24 services
  2. Emergency department visit with moderate level of medical decision making (99284)23 services
  3. Critical care, first 30-74 minutes (99291)19 services
  4. Emergency department visit with low level of medical decision making (99283)14 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 pressure75%
  • High cholesterol74%
  • Arthritis49%
  • Depression35%
  • Diabetes34%
  • Anxiety34%

Hospitals where Claire M. Brzeski works

Medicare's Facility Affiliation Data lists Claire M. Brzeski 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.

  • Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026

Practice locations

Addresses where Claire M. Brzeski is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Claire M. Brzeski as a member of this group (CMS data updated October 2, 2026).

  • Clinic Services of California Medical Group Inc61 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, California →

Other physician assistants in La Mesa

Clinicians with the same Medicare primary specialty in La Mesa, CA — not a recommendation.

All physician assistants in La Mesa →

Other clinicians in Clinic Services of California Medical Group Inc

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

Clinician information

CredentialPA
Graduation year2017
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467961599
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