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American Toxicology Management, LLC

Clinical Medical Laboratory in Simi Valley, CA · enumerated 2013 · authorized official Shannon Porter, Supervisor.

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

National Provider Identifier

1104266840

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Registry record

Entity type Organization (Type 2)
Legal business name American Toxicology Management, LLC
Practice address 1464 Madera Rd # N-137, Simi Valley, CA, 93065
Phone (805) 416-1648
Enumeration date Jun 26, 2013
Last updated in NPPES Jun 26, 2013

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Shannon Porter
Title Supervisor
Phone (805) 416-1648

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 American Toxicology Management, LLC?
The NPI for American Toxicology Management, LLC is 1104266840, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for American Toxicology Management, LLC?
NPPES lists Shannon Porter (Supervisor) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-26.