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

Internal Medicine

Nouneh O. Danielyan, MD

Works at hospitals in Glendale, CA · Los Angeles, CA · California

Summary

Dr. Nouneh O. Danielyan, MD is an internal medicine doctor at 5220 Santa Monica Blvd, Suite E, Los Angeles, CA 90029. Phone: (323) 913-9300. Accepts Medicare assignment. In 2024, Nouneh O. Danielyan had 508 Original Medicare patients and 3,887 services. NPI 1871520726. 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 Nouneh O. Danielyan, 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 Nouneh O. Danielyan accept Medicare assignment?
Yes. Medicare's clinician data says Nouneh O. Danielyan 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 Nouneh O. Danielyan see?
In 2024, CMS data shows 508 Original Medicare patients and 3,887 services for Nouneh O. Danielyan. This counts Original Medicare only and measures volume, not quality.
What is Nouneh O. Danielyan's NPI number?
1871520726. 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 Nouneh O. Danielyan, 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 patients508
Services billed to Medicare3,887
Different services or procedures52
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Telephone medical discussion with physician, 11-20 minutes (99442)740 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)677 services
  3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)416 services
  4. Insertion of needle into vein for collection of blood sample (36415)355 services
  5. Telephone medical discussion with physician, 5-10 minutes (99441)338 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%
  • Diabetes75%
  • Arthritis75%
  • Ischemic heart disease66%
  • Depression59%

Hospitals where Nouneh O. Danielyan works

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

Group practices

Medicare enrollment lists Nouneh O. Danielyan as a member of this group (CMS data updated October 2, 2026).

  • Michael y Karapetian MD Medical Clinic Inc2 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Los Angeles

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

All internal medicine doctors in Los Angeles →

Other clinicians in Michael y Karapetian MD Medical Clinic Inc

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

Clinician information

CredentialMD
Graduation year1980 (46 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1871520726
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