Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Illinois Department of Human Services

Q: What is the NPI number for Illinois Department of Human Services?

The NPI for Illinois Department of Human Services is 1679670186, a Type 2 (organization) record in the CMS NPPES registry.

Psychiatric Hospital in Tinley Park, IL · enumerated 2006 · authorized official Christine Tesmond, Reimbursement Officer.

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

National Provider Identifier

1679670186

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Registry record

Entity type Organization (Type 2)

Legal business name Illinois Department of Human Services

Other name <Unavail>

Practice address 7400 183rd St, Tinley Park, IL, 60477

Phone (708) 614-4041

Fax (708) 614-4496

Enumeration date Sep 19, 2006

Last updated in NPPES Apr 9, 2008

Taxonomy & classification

283Q00000X Psychiatric Hospital Hospitals Primary

Authorized official

Name Christine Tesmond

Title Reimbursement Officer

Phone (708) 614-4041

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 is the NPI number for Illinois Department of Human Services?

The NPI for Illinois Department of Human Services is 1679670186, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Illinois Department of Human Services?

NPPES lists Christine Tesmond (Reimbursement Officer) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-09.