QUEST DIAGNOSTICS CLINICAL LABORATORIES INC
NPI 1376333195
Clinical Medical Laboratory in Mcallen, TX

Active since May 07, 2025
5201 N 10TH ST, MCALLEN, TX 78504(956) 631-5411 Get Directions Write a Review

NPPES record last updated: May 7, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Quest Diagnostics Clinical Laboratories Inc NPPES

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

QUEST DIAGNOSTICS CLINICAL LABORATORIES INC (NPI 1376333195) is a healthcare organization registered as a clinical medical laboratory in Mcallen, Texas and active in the NPI registry since May 2025. The organization lists Leah D Timmerman, Vp, as its authorized official.

NPPES Registry Identity

NPI1376333195
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameQUEST DIAGNOSTICS CLINICAL LABORATORIES INC
Location Address5201 N 10TH STMcallen, TX 78504-2708
Mailing Address14275 Midway Rd Ste 400Addison, TX 75001-3661 · Fax (610) 271-4245
Organization SubpartYesParent: Quest Diagnostics Incorporated
Authorized OfficialLeah D TimmermanVp · (973) 520-2700
Enumeration DateMay 7, 2025
NPPES CertifiedMay 7, 2025
NPI 1376333195 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Medical LaboratoryLaboratories
Taxonomy Code291U00000X
Definition
(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.
5201 N 10TH ST, Mcallen, TX 78504

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
5201 N 10TH ST
MCALLEN, TX 78504
Family Medicine
5201 N 10TH ST
MCALLEN, TX 78504
Physician Assistant
5201 N 10TH ST
MCALLEN, TX 78504
Physician Assistant
5201 N 10TH ST
MCALLEN, TX 78504
Physician Assistant
5201 N 10TH ST
MCALLEN, TX 78504
Physician Assistant (Medical)
5201 N 10TH ST
MCALLEN, TX 78504
Nurse Practitioner (Family)
5201 N 10TH ST
MCALLEN, TX 78504

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 Clinical Laboratories Inc's NPI number?

The NPI number for Quest Diagnostics Clinical Laboratories Inc is 1376333195. It was assigned to this organization in the NPPES registry on May 7, 2025.

Where is Quest Diagnostics Clinical Laboratories Inc located?

Quest Diagnostics Clinical Laboratories Inc is located at 5201 N 10th St, Mcallen, TX 78504. The listed phone number is (956) 631-5411.

What is Quest Diagnostics Clinical Laboratories Inc's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

When was this NPI record last updated?

The NPPES record for Quest Diagnostics Clinical Laboratories Inc was last updated on May 7, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.