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

Colleen Anne O'Sullivan, LSW

Individual provider Clinical Social Worker · NPI 1659225530

Colleen Anne O'Sullivan, LSW is a Clinical Social Worker in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2026.

Licensed in
IL
In the registry since
2026
What do these letters mean?
LSW — Licensed Social Worker
A state-licensed social worker.

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Practice location Address checks out

10801 S Western Ave Ste 2B
Chicago, IL 60643-3223
Phone: (708) 586-7357
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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 150118375 (IL)

Record details

NPI number1659225530
Entity typeIndividual (Type 1)
GenderFemale
Credentials LSW
Sole proprietorNo
NPI enumeratedFebruary 25, 2026
Last updated in NPPESFebruary 25, 2026
Certification dateFebruary 25, 2026

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