NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Christian Social Services of Illinois

Mental Health Clinic/Center (Including Community Mental Health Center) in Belleville, IL · enumerated 2006 · authorized official Gary Huelsmann, Chief Executive Officer.

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

National Provider Identifier

1154399780

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Christian Social Services of Illinois
Other name <Unavail>
Practice address 8601 West Main Street Suite 201, Belleville, IL, 62226
Phone (618) 397-5900
Fax (618) 394-5909
Enumeration date Mar 9, 2006
Last updated in NPPES Dec 17, 2025

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
251S00000X Community/Behavioral Health Agency Agencies Secondary
253J00000X Foster Care Agency Agencies Secondary
261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities Primary
322D00000X Emotionally Disturbed Childrens' Residential Treatment Facility Residential Treatment Facilities · License 180025 (IL) Secondary

Authorized official

Name Gary Huelsmann
Title Chief Executive Officer
Phone (618) 213-8705

Other identifiers

Identifier Type State Issuer
180025 Other IL DCFS CONTRACT #

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 Christian Social Services of Illinois?
The NPI for Christian Social Services of Illinois is 1154399780, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Christian Social Services of Illinois?
NPPES lists Gary Huelsmann (Chief Executive Officer) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-17.