NPIMap

Organization Active NPI

Quest Diagnostics LLC

  • Clinical Medical Laboratory
  • Chicago, IL
National Provider Identifier
1609460765
Registry record updated Dec 2, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
Legal business name
QUEST DIAGNOSTICS LLC
Practice address
1431 N Western Ave Ste 406
Chicago, IL 60622-1774
Phone
(312) 491-5250
Fax
(312) 491-5020
NPI assigned
Mar 1, 2021
Organization subpart
Yes
Parent organization
QUEST DIAGNOSTICS INCORPORATEDAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Dec 2, 2024

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Leah D Timmerman
Title
Vice President
Phone
(973) 520-2700

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Medical Laboratory 291U00000X Primary

Addresses

Primary practice location

1431 N Western Ave Ste 406
Chicago, IL 60622-1774

Mailing address

14275 Midway Rd Ste 400
Addison, TX 75001-3614
Phone (214) 932-8018

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20040526000665 IL Part B Supplier - Independent Clinical Laboratory 3779474986 12 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: East Moline, IL; Wood Dale, IL; Schaumburg, IL; Rock Island, IL; Moline, IL; Chicago, IL

Other NPIs on the same Medicare enrollment 11

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
14D2211007Quest Diagnostics - West Town Health Center1431 N Western Ave - Ste 406, Chicago, IL 60622Certificate of waiverJan 24, 2027
14D2312933Quest Diagnostics Primecare Young Family1431 N Western Ave - Ste 202, Chicago, IL 60622Certificate of waiverOct 21, 2026

National Provider Directory

National Provider Directory
Tax ID family
Quest Diagnostics LLC Il24 organizations share this tax ID, including this one
Part of
Questdiagnost Ic Inc

Other organizations with this tax ID 23

Organizations that report the same tax identification number in the National Provider Directory.

View all 23

Ownership & related parties

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1614556800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1733097600000",
    "number": "1609460765",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14275 MIDWAY RD STE 400",
            "city": "ADDISON",
            "state": "TX",
            "postal_code": "750013614",
            "telephone_number": "214-932-8018",
            "fax_number": "610-271-4245"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1431 N WESTERN AVE STE 406",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606221774",
            "telephone_number": "312-491-5250",
            "fax_number": "312-491-5020"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "QUEST DIAGNOSTICS LLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "QUEST DIAGNOSTICS INCORPORATED",
        "enumeration_date": "2021-03-01",
        "last_updated": "2024-12-02",
        "certification_date": "2024-12-02",
        "status": "A",
        "authorized_official_last_name": "TIMMERMAN",
        "authorized_official_first_name": "LEAH",
        "authorized_official_middle_name": "D",
        "authorized_official_title_or_position": "VICE PRESIDENT",
        "authorized_official_telephone_number": "973-520-2700"
    },
    "taxonomies": [
        {
            "code": "291U00000X",
            "taxonomy_group": "",
            "desc": "Clinical Medical Laboratory",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2024; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.