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

Quest Diagnostics Massachusetts LLC

Clinical Medical Laboratory in Worcester, MA · enumerated 2014 · authorized official J Pablo Lake, Vp of Revenue Services.

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

National Provider Identifier

1033536636

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Registry record

Entity type Organization (Type 2)
Legal business name Quest Diagnostics Massachusetts LLC
Parent organization Quest Diagnostics Incorporated
Practice address 1 Eaton Pl, Worcester, MA, 01608
Phone (508) 556-5400
Enumeration date Mar 21, 2014
Last updated in NPPES Mar 21, 2014

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name J Pablo Lake
Title Vp of Revenue Services
Phone (484) 676-7000

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 Quest Diagnostics Massachusetts LLC?
The NPI for Quest Diagnostics Massachusetts LLC is 1033536636, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Quest Diagnostics Massachusetts LLC?
NPPES lists J Pablo Lake (Vp of Revenue Services) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-21.