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

MS. Nancy J Leff, LCSW

Individual provider Social Worker · NPI 1124073499

MS. Nancy J Leff, LCSW is a Social Worker in Madison, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
What do these letters mean?
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

2709 Marshall Ct
Madison, WI 53705-2255
Phone: (608) 231-3191
Fax: (608) 231-3108
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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 2401-123 (WI)

Record details

NPI number1124073499
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMay 24, 2006
Last updated in NPPESJanuary 23, 2008
Mailing address2709 Marshall Ct, Madison, WI 53705-2255

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