Quest Diagnostics Incorporated

Quest Diagnostics Incorporated is a healthcare organization registered as Clinical Medical Laboratory in Manchester, NH, holding Type 2 (organization) NPI 1538189725 since 2006. The authorized official on file is Gerald Cartier, Vp of Revenue Services.

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NPI	1538189725
Entity type	Organization (Type 2)
Legal business name	Quest Diagnostics Incorporated
Practice address	100 HITCHCOCK WAY, Manchester, NH, 03104
Phone	6175478900
Enumeration date	2006-07-20
Last updated in NPPES	2012-10-04

Authorized official

Name	Gerald Cartier
Title	Vp of Revenue Services
Phone	4846767000

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
291U00000X	Clinical Medical Laboratory	Primary	30D0085651	NH

Copy-ready billing details

Provider: Quest Diagnostics Incorporated
NPI: 1538189725
Taxonomy: 291U00000X (Clinical Medical Laboratory)
Address: 100 HITCHCOCK WAY, Manchester, NH, 03104

Providers at this address

NPI	Name	Type	Specialty	Location
1619974680	Elizabeth Welch Marsh	Individual	Anesthesiology Physician	Manchester, NH
1710986898	David Sack	Individual	Gastroenterology Physician	Manchester, NH
1649268368	Anthony Repucci	Individual	Pediatric Gastroenterology Physician	Manchester, NH
1477542116	Elena Ivashina	Individual	Neurology Physician	Manchester, NH
1467433342	Thomas Johnson	Individual	Pediatric Cardiology Physician	Manchester, NH
1255312674	Paul Schreiber	Individual	Pediatrics Physician	Manchester, NH
1821071747	Lawton Shick	Individual	Gastroenterology Physician	Manchester, NH
1598748261	Sowmya Viswanathan	Individual	Internal Medicine Physician	Manchester, NH

Verify this record

Cross-check NPI 1538189725 against the authoritative CMS record: view Quest Diagnostics Incorporated on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-10-04. Verify at npiregistry.cms.hhs.gov.

Where is Quest Diagnostics Incorporated located?

The practice location on file with NPPES is in Manchester, NH.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-10-04.