Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Cornerstone Diagnostics Inc

Clinical Medical Laboratory in Jamestown, KY · enumerated 2011 · authorized official William Bouchillon, Ceo.

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

National Provider Identifier

1023306347

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Cornerstone Diagnostics Inc

Other name <Unavail>

Practice address 812 N Main St, Jamestown, KY, 42629

Phone (877) 412-8330

Fax (844) 982-0300

Enumeration date Jul 20, 2011

Last updated in NPPES Dec 30, 2025

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name William Bouchillon

Title Ceo

Phone (877) 412-8330

Other identifiers

Identifier	Type	State	Issuer
7100198710	Medicaid	KY	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-12-30. Verify at npiregistry.cms.hhs.gov.

Where is Cornerstone Diagnostics Inc located?

The practice location on file with NPPES is in Jamestown, KY.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-30.