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Provider Profile

Justin Castello, PhD

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At a glance

About Dr. Castello

Justin Castello, PhD is a psychologist — clinical based in Berkeley, CA. Justin is also listed as specializing in psychologist. The provider's National Provider Identifier (NPI) is 1912364720.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Credentials & Licensing

CA · PsychologistBoard of Psychology
No. 27747CurrentExpired Oct 31, 2026Since 2015
NPINational Provider Identifier
1912364720Issued 2016

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Common questions

What kind of doctor is Justin Castello?

Justin Castello is a psychologist in Berkeley, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.

NPI registry

What is Justin Castello's address?

Justin Castello is listed at 2222 Bancroft Way # Mc4300, Berkeley, CA 94720. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Justin Castello?

The number on file is (510) 643-5808. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Justin Castello's NPI number?

Justin Castello's National Provider Identifier is 1912364720. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

How long has Justin Castello been practicing?

Justin Castello has 10+ years experience. Registered with an NPI since 2016. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Has Justin Castello confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Justin Castello. If this is you, claiming it is free.

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