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

Quest Diagnostics Massachusetts LLC

Clinical Medical Laboratory in Leominster, MA · enumerated 2012 · authorized official David Betz, Manager.

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

National Provider Identifier

1104179860

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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 225 New Lancaster Rd, Leominster, MA, 01453

Phone (978) 466-3211

Enumeration date Oct 18, 2012

Last updated in NPPES Oct 25, 2022

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name David Betz

Title Manager

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Quest Diagnostics Massachusetts LLC located?

The practice location on file with NPPES is in Leominster, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-10-25. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-25.