NPIMap

Organization Active NPI

Quest Diagnostics Incorporated

  • Clinical Medical Laboratory
  • Mount Kisco, NY
National Provider Identifier
1730982109
Registry record updated Oct 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
Legal business name
QUEST DIAGNOSTICS INCORPORATED
Practice address
110 S Bedford Rd Ste a
Mount Kisco, NY 10549-3446
Phone
(914) 302-8331
NPI assigned
Mar 31, 2025
Last updated
Oct 7, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Oct 7, 2026

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

Authorized official

Name
Leah D Timmerman
Title
SVP Health Plan
Phone
(973) 520-2700

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Medical Laboratory 291U00000X Primary

Addresses

Primary practice location

110 S Bedford Rd Ste a
Mount Kisco, NY 10549-3446

Mailing address

4770 Regent Blvd
Irving, TX 75063-2445

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20190423001988 NY Part B Supplier - Independent Clinical Laboratory 9537065081 2 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: New York, NY; Mount Kisco, NY; Albany, NY

Other NPIs on the same Medicare enrollment 2

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
33D2317249Quest Diagnostics110 South Bedford Road, 3Rd Floor, Ste a, Mount Kisco, NY 10549ComplianceMar 26, 2027

National Provider Directory

National Provider Directory
Tax ID family
Corning Nichols6 organizations share this tax ID, including this one

Other organizations with this tax ID 5

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

Member organizations 133

Organizations listed as members of this organization in the National Provider Directory.

View all 133

Locations

201 London Pkwy
Birmingham, AL 35211
Phone (800) 719-9807

1400 Jackson St
Rm 422
Denver, CO 80206
Phone (800) 222-0446

2177 Flintstone Dr
Ste J
Tucker, GA 30084
Phone (770) 496-1370

110 S Bedford Rd
Ste 3
Mount Kisco, NY 10549

110 S Bedford Rd
Ste A
Mount Kisco, NY 10549
Phone (914) 302-8331

NPI Registry JSON

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

{
    "created_epoch": "1743379200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1791331200000",
    "number": "1730982109",
    "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"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "110 S BEDFORD RD STE A",
            "city": "MOUNT KISCO",
            "state": "NY",
            "postal_code": "105493446",
            "telephone_number": "914-302-8331"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "QUEST DIAGNOSTICS INCORPORATED",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-03-31",
        "last_updated": "2026-10-07",
        "certification_date": "2026-10-07",
        "status": "A",
        "authorized_official_last_name": "TIMMERMAN",
        "authorized_official_first_name": "LEAH",
        "authorized_official_middle_name": "D",
        "authorized_official_title_or_position": "SVP HEALTH PLAN",
        "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 Mount Kisco, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 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.