Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John W. Onstad

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1174606107

John W. Onstad is an Anatomic Pathology & Clinical Pathology Physician in Yakima, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2006
Specialties on file
2

Practice location Address checks out

401 S 12th Ave
Yakima, WA 98902-3142
Phone: (509) 248-1831
Fax: (509) 452-6911
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence MD00014553 (WA)
Cytopathology Physician Taxonomy 207ZC0500X · Licence MD00014553 (WA)

Record details

NPI number1174606107
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedOctober 23, 2006
Last updated in NPPESMarch 23, 2010
Mailing address401 S 12th Ave, Yakima, WA 98902-3142

Other providers in Yakima