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

Gwendolyn J Olson, MSW, LCSW

Individual provider Social Worker · NPI 1770198988

Gwendolyn J Olson, MSW, LCSW is a Social Worker in Jefferson, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2020.

Licensed in
WI
In the registry since
2020
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1541 Annex Rd
Jefferson, WI 53549-9803
Phone: (920) 674-3105
Fax: (920) 674-2359
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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 9781 (WI)
Social Worker Taxonomy 104100000X · Licence 131482 (WI)

Record details

NPI number1770198988
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LCSW
Sole proprietorNo
NPI enumeratedSeptember 14, 2020
Last updated in NPPESNovember 3, 2021
Certification dateNovember 3, 2021

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