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

Estella Corinne Williamson, LMSW

Individual provider Social Worker · NPI 1164512695

Estella Corinne Williamson, LMSW is a Social Worker in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
Specialties on file
2
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

325 9th Ave
Seattle, WA 98104-2420
Phone: (206) 520-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LW61165428 (WA)
Social Worker Taxonomy 104100000X · Licence LW61165428 (WA)

Record details

NPI number1164512695
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorNo
NPI enumeratedOctober 13, 2006
Last updated in NPPESOctober 24, 2023
Certification dateOctober 24, 2023

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