Physician Profile

Justin D. Grey, MD

Unclaimed Profile

About Dr. Grey

Based in San Jose, CA, Justin D. Grey, MD is listed in the NPI registry under psychiatry. Justin is also listed as specializing in neurology / psychiatry, addiction psychiatry, and child & adolescent psychiatry.

Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.

Specialty

Psychiatry (Primary)
Psychiatry (Additional)
Addiction Psychiatry (Additional)
Child & Adolescent Psychiatry (Additional)
Geriatric Psychiatry (Additional)

Credentials & Licensing

CA licenseG65957
NPI1992898753
NPI issued10/02/2006

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Medicare information

Medicare opt-outYes, since July 2025

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What does Dr. Grey specialize in?

Dr. Grey is a psychiatrist in San Jose, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.

NPI registry

Where is Dr. Grey located?

Dr. Grey is listed at 2001 the Alameda Alliance for Community Care, San Jose, CA 95126. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Grey's phone number?

The number on file is (408) 261-7777. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Dr. Grey?

Dr. Grey's National Provider Identifier is 1992898753. 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 much experience does Dr. Grey have?

Dr. Grey has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Is Dr. Grey's profile verified?

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

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.