Physician Profile

S K. Callahan, M.D.

Unclaimed Profile

About Dr. Callahan

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Specialty

Internal Medicine (Primary)

Credentials & Licensing

WA licenseMD00021820
NPI1619013703
NPI issued01/29/2007

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 S K. Callahan specialize in?

S K. Callahan is an internist in Seattle, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

Where is S K. Callahan located?

S K. Callahan is listed at 200 15Th Ave E, Seattle, WA 98112. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is S K. Callahan's phone number?

The number on file is (206) 326-3000. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for S K. Callahan?

S K. Callahan's National Provider Identifier is 1619013703. 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 S K. Callahan have?

S K. Callahan 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 S K. Callahan's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by S K. Callahan. 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.