Provider Profile

Brian Greenspan, RN

Unclaimed Profile

About Brian Greenspan

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Specialty

Nurse Practitioner — Adult Health (Primary)

Credentials & Licensing

OR license10048681
NPI1639022452
NPI issued02/19/2026

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 does Brian Greenspan specialize in?

Brian Greenspan is a nurse practitioner in Portland, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Adult Health”.

NPI registry

Where is Brian Greenspan located?

Brian Greenspan is listed at 3218 Se Salmon St Apt A, Portland, OR 97214. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Brian Greenspan's phone number?

The number on file is (415) 378-5610. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is Brian Greenspan's NPI number?

Brian Greenspan's National Provider Identifier is 1639022452. 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 Brian Greenspan confirmed this information?

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