1. Home
  2. Directory
  3. California
  4. Riverside
  5. Psychiatry Neurology
  6. NPI Profile

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

Active since January 13, 2023
900 UNIVERSITY AVE, RIVERSIDE, CA 92521(951) 827-9197 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 11, 2025, May 3, 2024, Jan 13, 2023 (3 updates tracked since 2023).

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 (203974) 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 UpdateSeptember 11, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 11, 2025
✔ 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 · 203974
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
Open in Google Maps ↗

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.

STEPHEN DOUGLAS SPRENGEL DDS
Dentist
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Riverside County (760) 822-2075
UNIVERSITY OF CALIFORNIA RIVERSIDE
Psychologist (Counseling)
900 UNIVERSITY AVE, VEITCH STUDENT CENTER, NORTH WING
RIVERSIDE, CA 92521
Riverside County (951) 827-5531
HEATHER MAU MS, ATC
Legal Medicine
900 UNIVERSITY AVE, 50 M ATHLETICS AND DANCE
RIVERSIDE, CA 92521
Riverside County (951) 827-3813
RAPHAEL CARPIO
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE, 50M ATHLETICS AND DANCE
RIVERSIDE, CA 92521
Riverside County (951) 827-3818
JILIAN CHRISTIAN MS, ATC
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Riverside County (951) 827-3813
MR. MARK ALAN ESPINOSA ATC
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Riverside County (951) 990-0794
DR. MICHELLE TOM MD
Psychiatry & Neurology (Psychiatry)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Riverside County (951) 827-1012
SHALIN PATEL M.D.
Psychiatry & Neurology (Psychiatry)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Riverside County (951) 468-8011

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 September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.