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Pathology

Irene R. Riahi, MD

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

Summary

Irene R. Riahi, MD (Pathology) is listed by Medicare at 3 hospitals in Los Angeles, CA, Santa Monica, CA and West Hills, CA. NPI 1528696325. 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 Irene R. Riahi, 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

PathologyPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
FemaleGender (as listed)
UCLA Pathology and Laboratory Medicine GroupGroup practice

Quick answers

Which hospitals does Irene R. Riahi work at?
Medicare's official clinician data lists Irene R. Riahi at 3 hospitals: Ronald Reagan UCLA Medical Center, Santa Monica - UCLA Medical Center & Orthopaedic Hospital and UCLA West Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Irene R. Riahi see patients?
Medicare's clinician data lists 3 practice locations, including Los Angeles, CA and West Hills, CA. Call before your visit to confirm the address.
What is Irene R. Riahi's specialty?
Medicare lists Pathology as the primary specialty.
Does Irene R. Riahi accept Medicare assignment?
Yes. Medicare's clinician data says Irene R. Riahi 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 Irene R. Riahi?
(310) 267-2680, as listed in official Medicare / NPI Registry data.
What is Irene R. Riahi's NPI number?
1528696325. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Irene R. Riahi works

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

Group practices

Medicare enrollment lists Irene R. Riahi as a member of this group (CMS data updated 2026-10-02).

  • UCLA Pathology and Laboratory Medicine Group68 clinicians in the group

Specialties

Find other Pathology doctors in California →

Other pathologists in Los Angeles

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

All pathologists in Los Angeles →

Clinician information

CredentialMD
Graduation year2011
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1528696325
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