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

Mr. Tom Andrew Duff, LCSW

Individual provider Clinical Social Worker · NPI 1467771907

Mr. Tom Andrew Duff, LCSW is a Clinical Social Worker in Mount Vernon, Illinois. Licensed in Illinois. Registered with an NPI since 2010.

Licensed in
IL
In the registry since
2010
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

2023 Richview Rd
Mount Vernon, IL 62864-2884
Phone: (618) 242-1070
Fax: (618) 242-9381
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149.014048 (IL)

Record details

NPI number1467771907
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMay 24, 2010
Last updated in NPPESMay 24, 2010

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