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

Mr. Stefan Zillioux, LICSW

Individual provider Clinical Social Worker · NPI 1346717253

Mr. Stefan Zillioux, LICSW is a Clinical Social Worker in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2018.

Licensed in
WA
In the registry since
2018
What do these letters mean?
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1911 22nd Ave S
Seattle, WA 98144-4519
Phone: (206) 464-1570
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LW00008163 (WA)

Record details

NPI number1346717253
Entity typeIndividual (Type 1)
GenderMale
Credentials LICSW
Sole proprietorNo
NPI enumeratedOctober 29, 2018
Last updated in NPPESAugust 4, 2023
Certification dateAugust 4, 2023

Other providers in Seattle