Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Stephen Preston Casowitz, PA-C

Individual provider Physician Assistant · NPI 1013245851

Mr. Stephen Preston Casowitz, PA-C is a Physician Assistant in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2009
Specialties on file
3
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

1660 S Columbian Way
Seattle, WA 98108-1532
Phone: (206) 764-2215
Fax: (206) 764-2529
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 60123694 (WA)
Medical Physician Assistant Taxonomy 363AM0700X · Licence 60123694 (WA)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence 60123694 (WA)

Record details

NPI number1013245851
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorYes
NPI enumeratedDecember 4, 2009
Last updated in NPPESDecember 4, 2009

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