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Provider Profile

William Thomsen, FNP-C

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At a glance

About William Thomsen

William Thomsen, FNP-C is a nurse practitioner — family based in Berkeley, CA. The provider's National Provider Identifier (NPI) is 1821907072.

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

Specialty

Credentials & Licensing

CA · Registered NurseBoard of Registered Nursing
No. 95300277CurrentExpires Jul 2028Since 2022
CA · Nurse Practitioner FurnishingBoard of Registered Nursing
No. 95041282CurrentExpires Jul 2028Since 2026
NPINational Provider Identifier
1821907072Issued 2026

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Common questions

What does William Thomsen specialize in?

William Thomsen is a nurse practitioner in Berkeley, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Family”.

NPI registry

Where is William Thomsen located?

William Thomsen is listed at 1304 Albina Ave # 3, Berkeley, CA 94706. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is William Thomsen's phone number?

The number on file is (650) 387-8269. Contact the office directly to confirm availability and scheduling.

NPI registry

What is William Thomsen's NPI number?

William Thomsen's National Provider Identifier is 1821907072. 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

Has William Thomsen confirmed this information?

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

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