NPIMap

Organization Active NPI

Quest Diagnostics LLC Il

Doing business as Quest Diagnostics LLC

  • Clinical Medical Laboratory
  • Saint Paul, MN
National Provider Identifier
1285244616
Registry record updated Sep 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
Legal business name
QUEST DIAGNOSTICS LLC IL
Doing business as
Quest Diagnostics LLC
Practice address
895 7TH St E
Saint Paul, MN 55106-3871
Phone
(866) 697-8378
NPI assigned
Jul 31, 2020
Last updated
Sep 30, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
QUEST DIAGNOSTICS INCORPORATEDAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Sep 30, 2026

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

Authorized official

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Medical Laboratory 291U00000X Primary

Addresses

Primary practice location

895 7TH St E
Saint Paul, MN 55106-3871

Mailing address

4770 Regent Blvd
Irving, TX 75063-2445
Phone (973) 520-2700

Other names 1

  • Quest Diagnostics LLC Doing business as

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20040416001014 MN Part B Supplier - Independent Clinical Laboratory 3779474986 4 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Saint Paul, MN; Minneapolis, MN

Other NPIs on the same Medicare enrollment 4

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
24D0398704Quest Diagnostics-Minnesota Community Care RRL895 East 7TH Street, Saint Paul, MN 55106ComplianceApr 15, 2027

National Provider Directory

National Provider Directory
Tax ID family
Quest Diagnostics LLC Il24 organizations share this tax ID, including this one
Part of
Corning Nichols

Other organizations with this tax ID 23

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

View all 23

NPI Registry JSON

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

{
    "created_epoch": "1596153600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1790726400000",
    "number": "1285244616",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4770 REGENT BLVD",
            "city": "IRVING",
            "state": "TX",
            "postal_code": "750632445",
            "telephone_number": "973-520-2700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "895 7TH ST E",
            "city": "SAINT PAUL",
            "state": "MN",
            "postal_code": "551063871",
            "telephone_number": "866-697-8378"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "QUEST DIAGNOSTICS LLC IL",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "QUEST DIAGNOSTICS INCORPORATED",
        "enumeration_date": "2020-07-31",
        "last_updated": "2026-09-30",
        "certification_date": "2026-09-30",
        "status": "A",
        "authorized_official_last_name": "TIMMERMAN",
        "authorized_official_first_name": "LEAH",
        "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": [
        {
            "organization_name": "Quest Diagnostics LLC",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Saint Paul, MN

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 30, 2026; 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.