Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Commonwealth Medical Labs Inc.

Clinical Medical Laboratory in Warrenton, VA · enumerated 2006 · authorized official Michael Pratt, President.

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

National Provider Identifier

1295773380

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Commonwealth Medical Labs Inc.

Practice address 4228 Aiken Dr, Warrenton, VA, 20187

Phone (540) 428-2909

Fax (540) 428-2905

Enumeration date Jun 2, 2006

Last updated in NPPES Dec 14, 2009

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 49D0661031 (VA) Primary

Authorized official

Name Michael Pratt

Title President

Phone (540) 428-2909

Other identifiers

Identifier	Type	State	Issuer
0517383	Medicaid	IA	-
805782200	Medicaid	ID	-
00366099A	Medicaid	GA	-
0122009	Medicaid	MS	-
100027530A	Medicaid	IN	-
690008904	Other	-	RAILROAD MEDICARE
706118908	Medicaid	MO	-
465710	Other	VA	ANTHEM BLUE CROSS BLUE SH
7001088	Medicaid	NC	-
009801680	Medicaid	AL	-
114211709	Medicaid	AR	-
35460	Other	VA	SOUTHERN HEALTH SVCS
0724056-02	Medicaid	TX	-
1537527	Medicaid	LA	-
37901907	Medicaid	KY	-
004980832	Medicaid	VA	-
0899167	Medicaid	OH	-
0000420359	Medicaid	MT	-
923-19860	Other	AL	BLUE CROSS BLUE SHIELD

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 Commonwealth Medical Labs Inc. located?

The practice location on file with NPPES is in Warrenton, VA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2009-12-14. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-14.