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Extended Laboratory Services, L.P.

Clinical Medical Laboratory in Houston, TX · enumerated 2006 · authorized official John Clark, Medical Directro.

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

National Provider Identifier

1366477366

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Registry record

Entity type Organization (Type 2)
Legal business name Extended Laboratory Services, L.P.
Practice address 6160 South Loop E, Houston, TX, 77087
Phone (281) 556-1662
Enumeration date Jul 11, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name John Clark
Title Medical Directro
Phone (281) 556-1662

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.

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Frequently asked questions

What is the NPI number for Extended Laboratory Services, L.P.?
The NPI for Extended Laboratory Services, L.P. is 1366477366, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Extended Laboratory Services, L.P.?
NPPES lists John Clark (Medical Directro) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.