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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Quest Diagnostics Massachusetts LLC

Clinical Medical Laboratory in Shrewsbury, MA · enumerated 2006 · authorized official David Betz, Director.

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

National Provider Identifier

1801814868

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Registry record

Entity type Organization (Type 2)
Legal business name Quest Diagnostics Massachusetts LLC
Parent organization Quest Diagnostics LLC Ma
Practice address 378 Maple Ave, Shrewsbury, MA, 01545
Phone (802) 283-2556
Enumeration date Jul 18, 2006
Last updated in NPPES Oct 18, 2022

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 22D0066985 (MA) Primary

Authorized official

Name David Betz
Title Director
Phone (412) 920-7774

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Quest Diagnostics Massachusetts LLC?
Quest Diagnostics Massachusetts LLC is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-18.