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

Katherine Ziwisky

Individual provider Physician Assistant · NPI 1811399660

Katherine Ziwisky is a Physician Assistant in Renton, Washington. Qualified in 2014, 12 years ago. Practices with Valley Medical Group-Renton, a 422-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California, Illinois and Washington.

Years since qualifying
12
Licensed in
CA, IL, WA
In the registry since
2014
Specialties on file
3

Practice location Address checks out

4033 Talbot Rd S Ste 570
Renton, WA 98055-5700
Phone: (425) 690-3487
Fax: (425) 690-9087
Show map & directions

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

Additional practice locations (1)

  • 15644 Pomerado Rd, Poway, CA 92064-2400 — (858) 312-5459

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA61249152 (WA)
Physician Assistant Taxonomy 363A00000X · Licence 085005136 (IL)
Physician Assistant Taxonomy 363A00000X · Licence 53336 (CA)

Record details

NPI number1811399660
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedSeptember 24, 2014
Last updated in NPPESApril 25, 2022
Certification dateApril 25, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Valley Medical Group-Renton — 422 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Renton