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

MS. Mary Ann Dier - Zimmermann, LCPC

Individual provider Professional Counselor · NPI 1336298306

MS. Mary Ann Dier - Zimmermann, LCPC is a Professional Counselor in Bourbonnais, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2007
What do these letters mean?
LCPC — Licensed Clinical Professional Counselor
A licensed clinical counsellor.

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Practice location Address checks out

201 Park Pl Ste 2
Bourbonnais, IL 60914-1883
Phone: (815) 573-1443
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 180-001433 (IL)

Record details

NPI number1336298306
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCPC
Sole proprietorYes
NPI enumeratedJanuary 9, 2007
Last updated in NPPESJuly 25, 2023
Certification dateJuly 25, 2023

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