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

Leslie Williams

Individual provider Mental Health Counselor · NPI 1760885032

Leslie Williams is a Mental Health Counselor in Alton, Illinois. Registered with an NPI since 2014.

In the registry since
2014

Practice location Address checks out

2123 Holland St
Alton, IL 62002-3339
Phone: (618) 465-5903
Fax: (618) 462-2504
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1760885032
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 1, 2014
Last updated in NPPESOctober 2, 2014
Mailing address2615 Edwards St, Alton, IL 62002-3915

Other providers in Alton