Provider Profile

William Hallstein

Unclaimed Profile

About William Hallstein

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Specialty

Psychiatry (Primary)

Credentials & Licensing

CA licenseG24247
NPI1093862047
NPI issued01/04/2007

Source: NPPES NPI Registry

Common questions

What does William Hallstein specialize in?

William Hallstein is a psychiatrist in Martinez, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.

NPI registry

Where is William Hallstein located?

William Hallstein is listed at 2500 Alhambra Ave, Martinez, CA 94553. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is William Hallstein's phone number?

The number on file is (925) 370-5110. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for William Hallstein?

William Hallstein's National Provider Identifier is 1093862047. 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 William Hallstein have?

William Hallstein has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Is William Hallstein's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by William Hallstein. 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.