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

MS. Heather Witthoff, MSW, LCSW

Individual provider Clinical Social Worker · NPI 1619034238

MS. Heather Witthoff, MSW, LCSW is a Clinical Social Worker in Oak Park, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2007
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.

See every abbreviation used in this directory →

Practice location Address checks out

1010 Lake St Ste Number 616
Oak Park, IL 60301-1147
Phone: (773) 387-4787
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149010872 (IL)

Record details

NPI number1619034238
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LCSW
Sole proprietorYes
NPI enumeratedJanuary 2, 2007
Last updated in NPPESJune 4, 2008

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