Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Comprehensive Mental Health Center of St. Clair County, Inc.

Mental Health Clinic/Center (Including Community Mental Health Center) in East Saint Louis, IL · enumerated 2008 · authorized official Joseph Harper, Executive Director.

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

National Provider Identifier

1427227891

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Registry record

Entity type Organization (Type 2)

Legal business name Comprehensive Mental Health Center of St. Clair County, Inc.

Practice address 4601 State St, East Saint Louis, IL, 62205

Phone (618) 482-7330

Fax (618) 482-4351

Enumeration date Feb 29, 2008

Last updated in NPPES Jul 12, 2023

Taxonomy & classification

251S00000X Community/Behavioral Health Agency Agencies · License 251S00000X (IL) Secondary

261QM0801X Mental Health Clinic/Center (Including Community Mental Health Center) Ambulatory Health Care Facilities Primary

Authorized official

Name Joseph Harper

Title Executive Director

Phone (618) 482-7330

Other identifiers

Identifier	Type	State	Issuer
04037	Medicaid	IL	-

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

Who is the authorized official for Comprehensive Mental Health Center of St. Clair County, Inc.?

NPPES lists Joseph Harper (Executive Director) as the authorized official for this organization.

What is the NPI number for Comprehensive Mental Health Center of St. Clair County, Inc.?

The NPI for Comprehensive Mental Health Center of St. Clair County, Inc. is 1427227891, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Marshall Katzman Psychiatry Physician · East Saint Louis, IL NPI 1306853676 Pothen Jacob Pediatrics Physician · E St Louis, IL NPI 1376640474 Howard Jackson Foot Surgery Podiatrist · East Saint Louis, IL NPI 1255453718 Comprehensive Mental Health Center of St. Clair County, Inc. Community/Behavioral Health Agency · East Saint Louis, IL NPI 1801065289 Comprehensive Mental Health Center of St. Clair County, Inc. Mental Health Clinic/Center (Including Community Mental Health Center) · East Saint Louis, IL NPI 1437328812 Comprehensive Mental Health Center of St. Clair County, Inc. Community/Behavioral Health Agency · East Saint Louis, IL NPI 1730358110 Illinois Express Home Care In Home Supportive Care Agency · East Saint Louis, IL NPI 1013269737 Felicia Larkin Technician · East Saint Louis, IL NPI 1639023914

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-12.