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

Quest Diagnostics LLC

Organization Clinical Medical Laboratory · NPI 1952347791

Quest Diagnostics LLC is a Clinical Medical Laboratory in Marlborough, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

200 Forest St 3rd Fl Ste B
Marlborough, MA 01752-3023
Phone: (774) 369-3900
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Medical Laboratory (primary) Taxonomy 291U00000X · Licence 22D0076229 (MA)

Record details

NPI number1952347791
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationQuest Diagnostics Incorporated
Authorized official Charles Bowles — Sr. Vice President · (610) 454-4122
NPI enumeratedJune 21, 2006
Last updated in NPPESFebruary 12, 2024
Certification dateFebruary 12, 2024
Mailing address14275 Midway Rd Ste 400, Addison, TX 75001-3661

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