Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Dean Darrell Engel Alexander, PHD

Individual provider Intellectual & Developmental Disabilities Psychologist · NPI 1871549568

Dr. Dean Darrell Engel Alexander, PHD is an Intellectual & Developmental Disabilities Psychologist in Pomona, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3530 Pomona Blvd
Pomona, CA 91768-3238
Phone: (909) 595-1221
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Intellectual & Developmental Disabilities Psychologist (primary) Taxonomy 103TM1800X · Licence PSY 8478 (CA)

Record details

NPI number1871549568
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 25, 2006
Last updated in NPPESJuly 13, 2026

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