Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Quest Diagnostics Massachusetts LLC

Organization Clinical Medical Laboratory · NPI 1508306747

Quest Diagnostics Massachusetts LLC is a Clinical Medical Laboratory in Worcester, Massachusetts. Registered with an NPI since 2017.

In the registry since
2017
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

366 Shrewsbury St
Worcester, MA 01604-4647
Phone: (508) 755-1233
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Medical Laboratory (primary) Taxonomy 291U00000X

Record details

NPI number1508306747
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationQuest Diagnostics Incorporated
Authorized official David Betz — Regional Finance Director · (484) 676-7000
NPI enumeratedMarch 7, 2017
Last updated in NPPESOctober 25, 2022
Certification dateOctober 25, 2022
Mailing address1201 S Collegeville Rd, Collegeville, PA 19146-2998

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