Provider Profile

Holly Mason, MSW, LCSW

Unclaimed Profile

About Holly Mason

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Specialty

Clinical Social Worker (Primary)

Credentials & Licensing

WI license9714-123
NPI1861330565
NPI issued03/23/2026

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.

Common questions

What kind of doctor is Holly Mason, MSW?

Holly Mason, MSW is a clinical social worker in Appleton, WI. That is the designation recorded for this NPI in the federal registry.

NPI registry

What is Holly Mason, MSW's address?

Holly Mason, MSW is listed at 2800 E Enterprise Ave Ste 333, Appleton, WI 54913. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How can I make an appointment with Holly Mason, MSW?

The number on file is (414) 414-6117. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Holly Mason, MSW?

Holly Mason, MSW's National Provider Identifier is 1861330565. 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

Is Holly Mason, MSW's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Holly Mason, MSW. 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.