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

Mr. Marques Cosby Sr., LCSW

Individual provider Clinical Social Worker · NPI 1619625795

Mr. Marques Cosby Sr., LCSW is a Clinical Social Worker in Oak Park, Illinois. Qualified in 2020, 6 years ago. Practices with Oak Street Health Physicians Group PC, a 234-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
6
Licensed in
IL
In the registry since
2022
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

18 Chicago Ave
Oak Park, IL 60302-2402
Phone: (773) 253-3933
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10027 S Maplewood Ave, Chicago, IL 60655-1058 — (312) 478-6721

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149.027563 (IL)

Record details

NPI number1619625795
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMarch 16, 2022
Last updated in NPPESJune 20, 2025
Certification dateJune 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Oak Street Health Physicians Group Pc — 234 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Oak Park