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

Mr. Nathan Anthony Underhile, LCSW

Individual provider Clinical Social Worker · NPI 1255539771

Mr. Nathan Anthony Underhile, LCSW is a Clinical Social Worker in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1 N Dearborn St Ste 1000
Chicago, IL 60602-4331
Phone: (312) 986-4000
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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 149015493 (IL)

Record details

NPI number1255539771
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJuly 5, 2007
Last updated in NPPESMay 4, 2020
Certification dateMay 4, 2020

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