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 1568048205

Quest Diagnostics LLC is a Clinical Medical Laboratory in Chicago, Illinois. Registered with an NPI since 2021.

In the registry since
2021
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

1127 N Oakley Blvd Fl 2
Chicago, IL 60622-3507
Phone: (312) 770-2040
Fax: (773) 384-7433
Show map & directions

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

Specialties & licences

Clinical Medical Laboratory (primary) Taxonomy 291U00000X

Record details

NPI number1568048205
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationQuest Diagnostics Incorporated
Authorized official Charles Bowles — Vice President · (610) 454-6000
NPI enumeratedMarch 23, 2021
Last updated in NPPESMarch 23, 2021
Certification dateMarch 1, 2021
Mailing address14275 Midway Rd Ste 400, Addison, TX 75001-3614

Other providers in Chicago