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

Quest Diagnostics LLC

Organization Clinical Medical Laboratory · NPI 1346792355

Quest Diagnostics LLC is a Clinical Medical Laboratory in New Haven, Connecticut. Registered with an NPI since 2016.

In the registry since
2016
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

374 Grand Ave First Fl
New Haven, CT 06511
Phone: (206) 786-6556
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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 number1346792355
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationQuest Diagnostics Incorporated
Authorized official Charles Bowles — Vice President · (610) 454-4122
NPI enumeratedOctober 26, 2016
Last updated in NPPESDecember 10, 2022
Certification dateDecember 10, 2022
Mailing address1201 S Collegeville Rd, Collegeville, PA 19426-2998

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