NPIMap

Organization Active NPI

Quest Diagnostics LLC

  • Clinical Medical Laboratory
  • Natick, MA
National Provider Identifier
1730928565
Registry record updated May 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
Legal business name
QUEST DIAGNOSTICS LLC
Practice address
1400 Worcester St
Natick, MA 01760-1532
Phone
(555) 555-1212
NPI assigned
May 21, 2024
Organization subpart
No

Authorized official

NPPES NPI Registry
Name
Leah D Timmerman
Title
Sr Vice President
Phone
(973) 520-2700

Other NPIs on the same Medicare enrollment 5

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

Corporate family (same tax ID) 17

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

Practitioners 4

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

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
22D2305630Quest Diagnostics Massachusetts LLC1400 Worcester Street, Natick, MA 01760ComplianceJan 5, 2028

Medicare participation

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

Medicare enrollment records 1

Medicare enrollment files
Enrollment IDStateProvider typePAC IDDetails
O20050719000827 MA Part B Supplier - Independent Clinical Laboratory 9234114075 6 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Fall River, MA; North Dartmouth, MA; Natick, MA; Marlborough, MA

National Provider Directory

National Provider Directory
Tax ID family
Quest Diagnostics (18 organizations share this tax ID)

Locations

1 Towne Park Plz
Norwich, CT 06360
Phone (860) 886-1433

1 Pearl St
Brockton, MA 02301
Phone (508) 586-3600

877 Main St
Cambridge, MA 02139
Phone (617) 520-8235

190 Nonotuck St
Ste 104
Florence, MA 01062
Phone (413) 584-3864

49 Harry Kemp Way
Rm 2
Provincetown, MA 02657
Phone (508) 487-2062

106 E Main St
Westborough, MA 01581
Phone (508) 871-0700

100 Mlk Jr Blvd
Bsmt
Worcester, MA 01608
Phone (508) 754-0178

6 Tsienneto Rd
Ste 102LL
Derry, NH 03038

Specialties & licenses 1

NPPES NPI Registry
Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Medical Laboratory 291U00000X Primary

Addresses

NPPES NPI Registry

Primary practice location

1400 Worcester St
Natick, MA 01760-1532

Mailing address

14275 Midway Rd Ste 400
Addison, TX 75001-3661
Phone (774) 843-3062

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on May 15, 2025.

{
    "created_epoch": "1716249600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1747267200000",
    "number": "1730928565",
    "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": "750013661",
            "telephone_number": "774-843-3062"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 WORCESTER ST",
            "city": "NATICK",
            "state": "MA",
            "postal_code": "017601532",
            "telephone_number": "555-555-1212"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "QUEST DIAGNOSTICS LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2024-05-21",
        "last_updated": "2025-05-15",
        "certification_date": "2025-05-15",
        "status": "A",
        "authorized_official_last_name": "TIMMERMAN",
        "authorized_official_first_name": "LEAH",
        "authorized_official_middle_name": "D",
        "authorized_official_title_or_position": "SR 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 Natick, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 15, 2025; 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.