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Emergency Medicine

Lily Vartanyan, MD

Works at hospitals in Glendale, CA · Oceanside, CA · California

Summary

Dr. Lily Vartanyan, MD is an emergency medicine doctor at 1420 S Central Ave, Glendale, CA 91204. Phone: (818) 502-4521. Accepts Medicare assignment. In 2024, Lily Vartanyan had 459 Original Medicare patients and 528 services. NPI 1427547389. 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 Lily Vartanyan, 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 Lily Vartanyan accept Medicare assignment?
Yes. Medicare's clinician data says Lily Vartanyan 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 Lily Vartanyan see?
In 2024, CMS data shows 459 Original Medicare patients and 528 services for Lily Vartanyan. This counts Original Medicare only and measures volume, not quality.
What is Lily Vartanyan's NPI number?
1427547389. 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 Lily Vartanyan, 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 patients459
Services billed to Medicare528
Different services or procedures22
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)329 services
  2. Critical care, first 30-74 minutes (99291)98 services
  3. Emergency department visit with moderate level of medical decision making (99284)48 services
  4. Emergency department visit with low level of medical decision making (99283)17 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 cholesterol75%
  • Arthritis75%
  • Diabetes69%
  • Ischemic heart disease63%
  • Heart failure56%

Hospitals where Lily Vartanyan works

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

Group practices

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

  • Ridgeline Emergency Physicians Medical Group, Inc.41 clinicians in the group
  • Team Physicians of Southern California Medical Group Inc24 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Glendale

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

All emergency medicine doctors in Glendale →

Other clinicians in Ridgeline Emergency Physicians Medical Group, Inc.

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

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427547389
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