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

Mr. Justin Castello, PHD

Individual provider Psychologist · NPI 1912364720

Mr. Justin Castello, PHD is a Psychologist in Berkeley, California. Licensed in California. Registered with an NPI since 2016.

Licensed in
CA
In the registry since
2016
Specialties on file
2
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

2222 Bancroft Way # MC4300
Berkeley, CA 94720-4301
Phone: (510) 643-5808
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY27747 (CA)
Psychologist Taxonomy 103T00000X · Licence PSY27747 (CA)

Record details

NPI number1912364720
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 25, 2016
Last updated in NPPESJanuary 25, 2016

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