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

John Christopher Williams

Individual provider Behavior Analyst · NPI 1285264465

John Christopher Williams is a Behavior Analyst in Chicago, Illinois. Works from 2 locations. Registered with an NPI since 2020.

In the registry since
2020

Practice location Address checks out

1657 W Cortland St
Chicago, IL 60622-1119
Phone: (847) 486-4140
Show map & directions

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

Additional practice locations (1)

  • 4433 W Touhy Ave # 335, Lincolnwood, IL 60712-1820 — (877) 486-4140

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X

Record details

NPI number1285264465
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJanuary 16, 2020
Last updated in NPPESJanuary 16, 2020
Certification dateJanuary 16, 2020
Mailing address950 Lee St Ste 210, Des Plaines, IL 60016-6574

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