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

Mr. Dennis Kelly O'Brien, LCSW, CADC

Individual provider Clinical Social Worker · NPI 1760026231

Mr. Dennis Kelly O'Brien, LCSW, CADC is a Clinical Social Worker in Chicago, Illinois. Registered with an NPI since 2019.

In the registry since
2019
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.
CADC — Certified Alcohol and Drug Counselor
A certified addiction counsellor.

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Practice location Address checks out

7433 N Clark St
Chicago, IL 60626-1619
Phone: (773) 338-8778
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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 number1760026231
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW , CADC
Sole proprietorNo
NPI enumeratedOctober 29, 2019
Last updated in NPPESOctober 29, 2019

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