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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

QUEST DIAGNOSTICS LLC IL
NPI 1851901466
Pathology - Anatomic Pathology & Clinical Pathology in Beaver Dam, WI

Active since August 07, 2020
130 WARREN ST BLDG C, BEAVER DAM, WI 53916(866) 697-8378 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 30, 2026, Aug 7, 2020 (2 updates tracked since 2020).

About Quest Diagnostics Llc Il NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

QUEST DIAGNOSTICS LLC IL (NPI 1851901466) is a healthcare organization registered as an anatomic pathology & clinical pathology in Beaver Dam, Wisconsin and active in the NPI registry since August 2020. The organization lists Leah Timmerman, Vice President, as its authorized official.

NPPES Registry Identity

NPI1851901466
Entity TypeOrganization
Primary Taxonomy207ZP0102X
Legal Business NameQUEST DIAGNOSTICS LLC IL
Location Address130 WARREN ST BLDG CBeaver Dam, WI 53916-3062
Mailing Address4770 Regent BlvdIrving, TX 75063-2445 · (214) 932-8018 · Fax (610) 271-4245
Phone(866) 697-8378
Organization SubpartYesParent: Quest Diagnostics Incorporated
Authorized OfficialLeah TimmermanVice President · (610) 454-6000
Enumeration DateAugust 7, 2020
Last NPPES UpdateSeptember 30, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2026
✔ NPI 1851901466 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
130 WARREN ST BLDG C, Beaver Dam, WI 53916
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Quest Diagnostics LLC Il's NPI number?

The NPI number for Quest Diagnostics LLC Il is 1851901466. It was assigned to this organization in the NPPES registry on August 7, 2020.

Where is Quest Diagnostics LLC Il located?

Quest Diagnostics LLC Il is located at 130 Warren St Bldg C, Beaver Dam, WI 53916. The listed phone number is (866) 697-8378.

What is Quest Diagnostics LLC Il's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

When was this NPI record last updated?

The NPPES record for Quest Diagnostics LLC Il was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.