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Geriatric Medicine

Catherine A. Sarkisian, MD

Works at hospitals in Los Angeles, CA · Santa Monica, CA · California

Summary

Dr. Catherine A. Sarkisian, MD is a geriatrician at 100 Medical Plaza, Los Angeles, CA 90095. Phone: (310) 825-7922. Accepts Medicare assignment. In 2024, Catherine A. Sarkisian had 46 Original Medicare patients and 91 services. NPI 1194745273. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Catherine A. Sarkisian, 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 Catherine A. Sarkisian accept Medicare assignment?
Yes. Medicare's clinician data says Catherine A. Sarkisian 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 Catherine A. Sarkisian see?
In 2024, CMS data shows 46 Original Medicare patients and 91 services for Catherine A. Sarkisian. This counts Original Medicare only and measures volume, not quality.
What is Catherine A. Sarkisian's NPI number?
1194745273. 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 Catherine A. Sarkisian, 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 patients46
Services billed to Medicare91
Different services or procedures4
Participating Medicare providerYes
Average age of these patients85

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)78 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 pressure72%
  • High cholesterol57%
  • Arthritis57%
  • Depression39%
  • Alzheimer's disease or dementia39%
  • Chronic kidney disease37%

Hospitals where Catherine A. Sarkisian works

Medicare's Facility Affiliation Data lists Catherine A. Sarkisian 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 Catherine A. Sarkisian is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

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

  • The Regents of the University of California1,462 clinicians in the group

Specialties

Find other Geriatric Medicine doctors in California →

Other geriatricians in Los Angeles

Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.

All geriatricians in Los Angeles →

Other clinicians in The Regents of the University of California

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Francisco School Of Medicine
Graduation year1993 (33 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1194745273
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