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

Claire E Zierer, LCSW

Individual provider Social Worker · NPI 1588047740

Claire E Zierer, LCSW is a Social Worker in Geneva, Illinois. Practices as a sole proprietor and works from 2 locations. Licensed in Illinois.

Licensed in
IL
In the registry since
2015
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

28 N 1st St
Geneva, IL 60134-2387
Phone: (888) 428-7890
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4100 Veterans Pkwy, McHenry, IL 60050-8350 — (847) 571-0035

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149022231 (IL)
Social Worker Taxonomy 104100000X

Record details

NPI number1588047740
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJuly 7, 2015
Last updated in NPPESJuly 5, 2023
Certification dateJuly 5, 2023
Mailing address28 N 1st St, Geneva, IL 60134-2387

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