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CORNERSTONE DIAGNOSTICS INC
NPI 1023306347
Clinical Medical Laboratory in Jamestown, KY

Active since July 20, 2011CLIA 18D2012989 · Accreditation
812 N MAIN ST, JAMESTOWN, KY 42629(877) 412-8330(844) 982-0300 Get Directions Write a Review

NPPES record last updated: December 30, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 30, 2025, Jan 26, 2022, Mar 5, 2021 and 1 more (4 updates tracked since 2019).

About Cornerstone Diagnostics Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CORNERSTONE DIAGNOSTICS INC (NPI 1023306347) is a healthcare organization registered as a clinical medical laboratory in Jamestown, Kentucky and active in the NPI registry since July 2011. The organization holds an CLIA Accreditation certificate valid through July 12, 2028 and lists William Bouchillon, Ceo, as its authorized official.

NPPES Registry Identity

NPI1023306347
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameCORNERSTONE DIAGNOSTICS INC
Location Address812 N MAIN STJamestown, KY 42629-2404
Mailing AddressPo Box 1240Russell Springs, KY 42642-1240 · (877) 412-8330 · Fax (844) 982-0300
Phone(877) 412-8330
Fax(844) 982-0300
Organization SubpartNo
Authorized OfficialWilliam BouchillonCeo · (877) 412-8330
Enumeration DateJuly 20, 2011
Last NPPES UpdateDecember 30, 20254 updates tracked since enumeration
NPPES CertifiedDecember 30, 2025
✔ NPI 1023306347 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Medical LaboratoryLaboratories
Taxonomy Code291U00000X
Definition

(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.

812 N MAIN ST, Jamestown, KY 42629
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Other Names 3

Doing Business AsCornerstone Diagnostics Inc
Doing Business AsPremier Tox 20 Inc
Doing Business AsPremier Tox Laboratory

Other Identifiers 1

Medicaid7100198710KY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Accreditation 18D2012989

Cornerstone Diagnostics Inc · Jamestown, KY
Active · expires Jul 12, 2028
CLIA Number18D2012989
Laboratory TypeIndependent
Certificate Effective DateJuly 13, 2026
Certificate Expiration DateJuly 12, 2028
Laboratory DirectorDr. Frederick W. Fochtman
Laboratory Phone(877) 412-8330
Laboratory LocationCornerstone Diagnostics Inc812 N Main St, Jamestown, KY 42629
CLIA data matches this NPI record on: Address Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms G0480
A definitive drug test is a detailed examination that can identify specific drugs in your system, even closely related ones. Techniques like GC/MS and LC/MS are used for high precision. This helps ensure accurate results for your safety and health.
997 services475 patients
Testing for presence of drug, by chemistry analyzers 80307
Chemistry analyzers are used to detect the presence of drugs in your system. This test involves taking a small sample of your blood or urine. The sample is then analyzed for specific substances. The results help in understanding your health condition better.
588 services248 patients
Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms G0481
A definitive drug test is a detailed analysis used to identify specific drugs in your system. It uses advanced techniques, such as gc/ms and lc/ms, to detect and distinguish between different drugs, even those with similar structures.
17 services11 patients

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cornerstone Diagnostics Inc's NPI number?

The NPI number for Cornerstone Diagnostics Inc is 1023306347. It was assigned to this organization in the NPPES registry on July 20, 2011. The provider is doing business as Premier Tox 20 INC and Premier Tox Laboratory.

Where is Cornerstone Diagnostics Inc located?

Cornerstone Diagnostics Inc is located at 812 N Main St, Jamestown, KY 42629. The listed phone number is (877) 412-8330.

What is Cornerstone Diagnostics Inc's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

Does Cornerstone Diagnostics Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Accreditation (number 18D2012989) is associated with this NPI, valid through July 12, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Cornerstone Diagnostics Inc accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Cross Blue Shield of Arizona and BlueCross BlueShield of Tennessee and 2 other insurers list Cornerstone Diagnostics Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Cornerstone Diagnostics Inc was last updated on December 30, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.