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Pulmonary Disease

Ramyar Mahdavi, MD

Works at hospitals in Simi Valley, CA · Glendale, CA · Northridge, CA · California

Summary

Ramyar Mahdavi, MD (Pulmonary Disease) is listed by Medicare at 3 hospitals in Simi Valley, CA, Glendale, CA and Northridge, CA. NPI 1346481645. 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 Ramyar Mahdavi, 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

Pulmonary DiseasePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
32Years since medical school (graduated 1994)
MaleGender (as listed)
Vista Critical Care Associates IncGroup practice (+1 more)

Quick answers

Which hospitals does Ramyar Mahdavi work at?
Medicare's official clinician data lists Ramyar Mahdavi at 3 hospitals: Adventist Health Simi Valley, Glendale Adventist Medical Center and Northridge Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ramyar Mahdavi see patients?
Medicare's clinician data lists 1 practice location in Glendale, CA. Call before your visit to confirm the address.
What is Ramyar Mahdavi's specialty?
Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists) and Internal Medicine.
Does Ramyar Mahdavi accept Medicare assignment?
Yes. Medicare's clinician data says Ramyar Mahdavi 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.
Does Ramyar Mahdavi offer telehealth?
Medicare's clinician data says Ramyar Mahdavi offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ramyar Mahdavi?
(818) 637-2200, as listed in official Medicare / NPI Registry data.
What is Ramyar Mahdavi's NPI number?
1346481645. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ramyar Mahdavi works

Medicare's Facility Affiliation Data lists Ramyar Mahdavi 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 Ramyar Mahdavi is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Vista Critical Care Associates Inc15 clinicians in the group
  • Southern California Pulmonary and Critical Care Associates, Inc.6 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in California →

Other pulmonologists in Glendale

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

All pulmonologists in Glendale →

Clinician information

CredentialMD
Graduation year1994
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1346481645
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