NPIMap

Organization Active NPI

Quest Diagnostics of Pennsylvania Inc.

  • Clinical Medical Laboratory
  • West Amherst, NY
National Provider Identifier
1366460321
Registry record updated Oct 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Medical LaboratoryTaxonomy code 291U00000X
License
33D0170780 Issued in NY
Legal business name
QUEST DIAGNOSTICS OF PENNSYLVANIA INC.
Practice address
1 Sylvan Pkwy
West Amherst, NY 14228-1134
Phone
(716) 568-5200
Fax
(716) 689-5961
NPI assigned
Jul 18, 2006
Last updated
Oct 15, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
QUEST DIAGNOSTICS INCORPORATEDAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Oct 15, 2026

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 33D0170780 NY Primary

Addresses

Primary practice location

1 Sylvan Pkwy
West Amherst, NY 14228-1134

Mailing address

4770 Regent Blvd
Irving, TX 75063-2445
Phone (866) 697-8378

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20071203000148 NY Part B Supplier - Independent Clinical Laboratory 2365345550 1 other NPI on this enrollment
Practice locations: North Syracuse, NY; West Amherst, NY

Other NPIs with the same Medicare PAC ID 2

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

Other NPIs on the same Medicare enrollment 1

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
33D0170780Quest Diagnostics of Pennsylvania Inc1 Sylvan Parkway, W Amherst, NY 14228ComplianceMar 26, 2027

National Provider Directory

National Provider Directory
Tax ID family
MDS Laboratories8 organizations share this tax ID, including this one
Part of
Corning Nichols

Other organizations with this tax ID 7

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

NPI Registry JSON

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

{
    "created_epoch": "1153180800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1792022400000",
    "number": "1366460321",
    "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": "866-697-8378",
            "fax_number": "610-271-4245"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 SYLVAN PKWY",
            "city": "WEST AMHERST",
            "state": "NY",
            "postal_code": "142281134",
            "telephone_number": "716-568-5200",
            "fax_number": "716-689-5961"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "QUEST DIAGNOSTICS OF PENNSYLVANIA INC.",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "QUEST DIAGNOSTICS INCORPORATED",
        "enumeration_date": "2006-07-18",
        "last_updated": "2026-10-15",
        "certification_date": "2026-10-15",
        "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": "NY",
            "license": "33D0170780",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in West Amherst, NY

Sources for this page

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