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

Mary Diane Wiatrowski, MSW, LCSW

Individual provider Social Worker · NPI 1457870644

Mary Diane Wiatrowski, MSW, LCSW is a Social Worker in Oshkosh, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2017.

Licensed in
WI
In the registry since
2017
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

404 N Main St Ste 612
Oshkosh, WI 54901-4953
Phone: (920) 385-1420
Fax: (866) 327-3295
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 4176-123 (WI)

Record details

NPI number1457870644
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LCSW
Sole proprietorNo
NPI enumeratedSeptember 19, 2017
Last updated in NPPESJuly 11, 2018

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