Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

State of Illinois

Q: What type of organization is State of Illinois?

State of Illinois is registered in NPPES as a Physical Disabilities Residential Treatment Facility (its primary provider taxonomy).

Physical Disabilities Residential Treatment Facility in Chicago, IL · enumerated 2006 · authorized official Chris Greenwood, Casemanager.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1609890235

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Registry record

Entity type Organization (Type 2)

Legal business name State of Illinois

Other name <Unavail>

Practice address 2424w.Charleston, Chicago, IL, 60647

Phone (773) 276-8863

Enumeration date Jul 27, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

320700000X Physical Disabilities Residential Treatment Facility Residential Treatment Facilities Primary

Authorized official

Name Chris Greenwood

Title Casemanager

Phone (312) 666-3494

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is State of Illinois?

State of Illinois is registered in NPPES as a Physical Disabilities Residential Treatment Facility (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.