NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Quest Diagnostics Incorporated

Clinical Medical Laboratory in Moline, IL · enumerated 2006 · authorized official G. Cartier, Vp National Billing.

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

National Provider Identifier

1558389510

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Quest Diagnostics Incorporated
Practice address 800 36th Ave, Ste 101, Moline, IL, 61265
Phone (309) 764-4945
Enumeration date Jul 18, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name G. Cartier
Title Vp National Billing
Phone (484) 676-7731

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

What is the NPI number for Quest Diagnostics Incorporated?
The NPI for Quest Diagnostics Incorporated is 1558389510, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Quest Diagnostics Incorporated?
NPPES lists G. Cartier (Vp National Billing) as the authorized official for this organization.

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