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

Michael Onak, LSW

Individual provider Clinical Social Worker · NPI 1366392698

Michael Onak, LSW is a Clinical Social Worker in Berwyn, Illinois. Practices as a sole proprietor. Registered with an NPI since 2026.

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

1628 Wenonah Ave
Berwyn, IL 60402-1619
Phone: (630) 991-7148
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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

Record details

NPI number1366392698
Entity typeIndividual (Type 1)
GenderMale
Credentials LSW
Sole proprietorYes
NPI enumeratedJanuary 28, 2026
Last updated in NPPESJanuary 28, 2026
Certification dateJanuary 28, 2026
Mailing address1628 Wenonah Ave, Berwyn, IL 60402-1619

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