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

Derek Lynn Hefner, LCSW

Individual provider Clinical Social Worker · NPI 1457086688

Derek Lynn Hefner, LCSW is a Clinical Social Worker in Madison, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2022
Specialties on file
2
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

702 N Blackhawk Ave
Madison, WI 53705-3357
Phone: (423) 737-7933
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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 132697-121 (WI)
Clinical Social Worker Taxonomy 1041C0700X · Licence 11798-123 (WI)

Record details

NPI number1457086688
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJuly 21, 2022
Last updated in NPPESAugust 23, 2024
Certification dateAugust 23, 2024

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