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 Alton, IL · enumerated 2022 · authorized official Gary Huelsmann, Ceo.

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

National Provider Identifier

1407594120

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Christian Social Services of Illinois
Practice address 111 E 4th St Ste 125, Alton, IL, 62002
Phone (618) 468-1601
Enumeration date May 23, 2022
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

Authorized official

Name Gary Huelsmann
Title Ceo
Phone (618) 213-8705

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 1407594120, 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 (Ceo) as the authorized official for this organization.

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