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

Seth R Sonenthal, LICSW, SUDP

Individual provider Clinical Social Worker · NPI 1124538103

Seth R Sonenthal, LICSW, SUDP is a Clinical Social Worker in Seattle, Washington. Works from 2 locations. Licensed in Washington.

Licensed in
WA
In the registry since
2017
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

4742 42nd Ave SW Unit 122
Seattle, WA 98116-4553
Phone: (206) 403-0173
Fax: (206) 326-1223
Show map & directions

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

Additional practice locations (1)

  • 4501 15th Ave S Ste 102, Seattle, WA 98108-1874 — (206) 403-0173

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LW60951016 (WA)

Record details

NPI number1124538103
Entity typeIndividual (Type 1)
GenderMale
Credentials LICSW , SUDP
Sole proprietorNo
NPI enumeratedOctober 4, 2017
Last updated in NPPESApril 14, 2026
Certification dateApril 14, 2026

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