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Provider Profile

William Callahan

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At a glance

About William Callahan

William Callahan is an addiction & substance abuse counselor based in Plymouth, MA. The provider's National Provider Identifier (NPI) is 1649136193.

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

Specialty

Addiction & Substance Abuse Counselor (Primary)

Credentials & Licensing

NPINational Provider Identifier
1649136193Issued 2025

As reported to the NPI registry ↗

Common questions

What does William Callahan specialize in?

William Callahan is an addiction & substance abuse counselor in Plymouth, MA. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where is William Callahan located?

William Callahan is listed at 61 Industrial Park Rd, Plymouth, MA 02360. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is William Callahan's phone number?

The number on file is (508) 689-5576. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for William Callahan?

William Callahan's National Provider Identifier is 1649136193. 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 Callahan have?

William Callahan has 1+ years experience. Registered with an NPI since 2025. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.

NPI registry

Is William Callahan's profile verified?

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

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