Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Williamson County Ambulance Service, Inc

Land Ambulance in Marion, IL · enumerated 2006 · authorized official Ricky Colyer, President.

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

National Provider Identifier

1255428140

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Registry record

Entity type Organization (Type 2)

Legal business name Williamson County Ambulance Service, Inc

Practice address 808 E Deyoung St, Marion, IL, 62959

Phone (618) 997-4915

Fax (618) 993-3386

Enumeration date Oct 10, 2006

Last updated in NPPES Jul 29, 2019

Taxonomy & classification

341600000X Ambulance Transportation Services Secondary

3416L0300X Land Ambulance Transportation Services · License 5210 (IL) Primary

Authorized official

Name Ricky Colyer

Title President

Phone (618) 922-8670

Other identifiers

Identifier	Type	State	Issuer
027487	Other	-	HEALTH ALLIANCE
113139	Other	-	HEALTHLINK, INC
087931100	Other	-	DOL BLACK LUNG
10070554	Other	IL	BLUE CROSS BLUE SHIELD
590155539	Other	-	RAILROAD MEDICARE
8181435	Other	-	UNITED HEALTHCARE

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

Where is Williamson County Ambulance Service, Inc located?

The practice location on file with NPPES is in Marion, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2019-07-29. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-29.