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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. DEAN DARRELL ENGEL ALEXANDER PH D
NPI 1871549568
Psychologist - Intellectual and Developmental Disabilities in Pomona, CA

Active since May 25, 2006
3530 POMONA BLVD, POMONA, CA 91768(909) 595-1221 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Dean Darrell Engel Alexander Ph D NPPES

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

DR. DEAN DARRELL ENGEL ALEXANDER PH D (NPI 1871549568) is an individual intellectual and developmental disabilities provider in Pomona, California, licensed in California (PSY 8478) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1871549568
Entity TypeIndividualMale
Primary Taxonomy103TM1800X
Provider Legal NameDR. DEAN DARRELL ENGEL ALEXANDERCredential: PH D
Location Address3530 POMONA BLVDPomona, CA 91768-3238
Mailing Address1600 9th St, Room 205 Mailstop 2-3Sacramento, CA 95814-6414 · (916) 654-2431 · Fax (916) 654-3186
Phone(909) 595-1221
Sole ProprietorNo
Enumeration DateMay 25, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1871549568 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Intellectual and Developmental DisabilitiesBehavioral Health & Social Service Providers
Taxonomy Code103TM1800X
License✔ Licensed in CA · PSY 8478
3530 POMONA BLVD, Pomona, CA 91768
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Other Providers at the Same Location NPPES 7

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

DR. KASEJA KANG PH D
Psychologist
3530 POMONA BLVD
POMONA, CA 91768
Los Angeles County (909) 595-1221
MR. STANLEY E LUNDE PHD
Psychologist (Intellectual and Developmental Disabilities)
3530 POMONA BLVD
POMONA, CA 91768
Los Angeles County (909) 595-1221
STATE OF CALIFORNIA - DEPARTMENT OF DEVELOPMENTAL SERVICES
General Acute Care Hospital
3530 POMONA BLVD
POMONA, CA 91768
Los Angeles County (909) 595-1221
DR. HAO T NGUYEN MD
Pathology (Anatomic Pathology & Clinical Pathology)
3530 POMONA BLVD
POMONA, CA 91768
Los Angeles County (909) 595-1221
DR. TERRY L EAKIN PH D
Psychologist (Clinical)
3530 POMONA BLVD
POMONA, CA 91768
Los Angeles County (909) 595-1221
BRENDA A DUFFEY-JEPSEN
Psychologist (Intellectual and Developmental Disabilities)
3530 POMONA BLVD
POMONA, CA 91768
Los Angeles County (909) 444-7250
LANTERMAN DEVELOPMENTAL CENTER
Intermediate Care Facility, Intellectual Disabilities
3530 POMONA BLVD
POMONA, CA 91768
Los Angeles County (909) 595-1221

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 Dean Alexander's NPI number?

The NPI number for Dean Alexander is 1871549568. It was assigned to this individual provider in the NPPES registry on May 25, 2006.

Where is Dean Alexander located?

Dean Alexander practices at 3530 Pomona Blvd, Pomona, CA 91768. The listed phone number is (909) 595-1221.

What is Dean Alexander's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Intellectual and Developmental Disabilities, with taxonomy code 103TM1800X.

When was this NPI record last updated?

The NPPES record for Dean Alexander was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.