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

Stephen Louis Siefert, LICSW

Individual provider Clinical Social Worker · NPI 1497863013

Stephen Louis Siefert, LICSW is a Clinical Social Worker in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2006
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 →

Practice location Address checks out

10740 Meridian Ave N Ste 104
Seattle, WA 98133-9010
Phone: (206) 367-3117
Fax: (206) 367-3117
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LW00008011 (WA)

Record details

NPI number1497863013
Entity typeIndividual (Type 1)
GenderMale
Credentials LICSW
Sole proprietorYes
NPI enumeratedAugust 25, 2006
Last updated in NPPESJuly 8, 2007

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