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

Mr. David Harker Lewis, LCSW

Individual provider Clinical Social Worker · NPI 1740517267

Mr. David Harker Lewis, LCSW is a Clinical Social Worker in Chicago, Illinois. Qualified in 2008, 18 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
18
Licensed in
IL
In the registry since
2009
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1658 N Milwaukee Ave Ste 10014438
Chicago, IL 60647-6905
Phone: (321) 219-4136
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149.014032 (IL)
Clinical Social Worker Taxonomy 1041C0700X · Licence 149014032 (IL)

Record details

NPI number1740517267
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedNovember 4, 2009
Last updated in NPPESMay 8, 2021
Certification dateMay 8, 2021

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Chicago