Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MATTHEW NEDJAT-HAIEM
NPI 1124732193
Psychiatry & Neurology - Psychiatry in Riverside, CA

Q: What is Matthew Nedjat-haiem's NPI number?

The NPI number for Matthew Nedjat-haiem is 1124732193. It was assigned to this individual provider in the NPPES registry on January 13, 2023.

Q: What is Matthew Nedjat-haiem's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Active since January 13, 2023

900 UNIVERSITY AVE, RIVERSIDE, CA 92521(951) 827-9197 Get Directions Write a Review

NPPES record last updated: October 14, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 14, 2026, Sep 11, 2025, May 3, 2024 and 1 more (4 updates tracked since 2023).

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About Matthew Nedjat-haiem NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MATTHEW NEDJAT-HAIEM (NPI 1124732193) is an individual psychiatry provider in Riverside, California, licensed in California (A203974) and active in the NPI registry since January 2023.

NPPES Registry Identity

NPI1124732193

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameMATTHEW NEDJAT-HAIEM

Location Address900 UNIVERSITY AVERiverside, CA 92521-9800

Mailing Address900 University AveRiverside, CA 92521-9800 · (951) 827-9197

Phone(951) 827-9197

Sole ProprietorNo

Enumeration DateJanuary 13, 2023

Last NPPES UpdateOctober 14, 20264 updates tracked since enumeration

NPPES CertifiedOctober 14, 2026

✔ NPI 1124732193 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in CA · A203974

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

900 UNIVERSITY AVE, Riverside, CA 92521

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ERIK MORALES

Student in an Organized Health Care Education/Training Program

900 UNIVERSITY AVE
RIVERSIDE, CA 92521

Riverside County (951) 827-4568

CHRISTOPHER SKORKA MD

Psychiatry & Neurology (Psychiatry)

900 UNIVERSITY AVE
RIVERSIDE, CA 92521

Riverside County (951) 827-9197

MARIO ANTONIO SALDANA MD

Hospitalist

900 UNIVERSITY AVE
RIVERSIDE, CA 92521

Riverside County (951) 827-4568

DR. ERIC MARVIN TRAN DO

Internal Medicine

900 UNIVERSITY AVE
RIVERSIDE, CA 92521

Riverside County (909) 475-2612

CLOIE JUNE LIM CHIONG MPH

Student in an Organized Health Care Education/Training Program

900 UNIVERSITY AVE
RIVERSIDE, CA 92521

Riverside County (909) 991-8856

DR. TASSAPORN SANGKIJPORN DO

Student in an Organized Health Care Education/Training Program

900 UNIVERSITY AVE, SOM ED. BLDG. II
RIVERSIDE, CA 92521

Riverside County (951) 827-4618

PATRICK SHEN CHAN MD

Student in an Organized Health Care Education/Training Program

900 UNIVERSITY AVE
RIVERSIDE, CA 92521

Riverside County (909) 475-2612

CHIBUZO UGOCHI EKE D.O.

Hospitalist

900 UNIVERSITY AVE, 2608 SCHOOL OF MEDICINE EDUCATION BUILDING
RIVERSIDE, CA 92521

Riverside County (951) 827-7669

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Nedjat-haiem's NPI number?

The NPI number for Matthew Nedjat-haiem is 1124732193. It was assigned to this individual provider in the NPPES registry on January 13, 2023.

Where is Matthew Nedjat-haiem located?

Matthew Nedjat-haiem practices at 900 University Ave, Riverside, CA 92521. The listed phone number is (951) 827-9197.

What is Matthew Nedjat-haiem's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Matthew Nedjat-haiem was last updated on October 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.