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Internal Medicine

Natalie Karapetians, MD

Works at hospitals in Simi Valley, CA · Mission Hills, CA · California

Summary

Natalie Karapetians, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Simi Valley, CA and Mission Hills, CA. NPI 1205493608. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Natalie Karapetians, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
FemaleGender (as listed)
Galen Inpatient Physicians PCGroup practice (+1 more)

Quick answers

Which hospitals does Natalie Karapetians work at?
Medicare's official clinician data lists Natalie Karapetians at 2 hospitals: Adventist Health Simi Valley and Providence Holy Cross Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Natalie Karapetians see patients?
Medicare's clinician data lists 2 practice locations, including Mission Hills, CA and Simi Valley, CA. Call before your visit to confirm the address.
What is Natalie Karapetians's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Natalie Karapetians accept Medicare assignment?
Yes. Medicare's clinician data says Natalie Karapetians accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Natalie Karapetians?
(818) 365-9531, as listed in official Medicare / NPI Registry data.
What is Natalie Karapetians's NPI number?
1205493608. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Natalie Karapetians works

Medicare's Facility Affiliation Data lists Natalie Karapetians at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Natalie Karapetians is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Natalie Karapetians as a member of these groups (CMS data updated 2026-10-02).

  • Galen Inpatient Physicians PC1,077 clinicians in the group
  • Providence Facey Medical Foundation385 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Mission Hills

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

All internal medicine doctors in Mission Hills →

Clinician information

CredentialMD
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205493608
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians