QUEST DIAGNOSTICS LLC IL
NPI 1942194196
Clinical Medical Laboratory in Mount Pleasant, IA

Active since June 04, 2025CLIA 16D2322277 · Waiver
501 S WHITE ST STE 1, MOUNT PLEASANT, IA 52641(319) 423-3527 Get Directions Write a Review

NPPES record last updated: May 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 28, 2026, Jun 4, 2025 (2 updates tracked since 2025).

About Quest Diagnostics Llc Il NPPES

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

QUEST DIAGNOSTICS LLC IL (NPI 1942194196) is a healthcare organization registered as a clinical medical laboratory in Mount Pleasant, Iowa and active in the NPI registry since June 2025. The organization holds a CLIA Waiver certificate valid through April 16, 2027 and lists Leah D Timmerman, Vice President, as its authorized official.

NPPES Registry Identity

NPI1942194196
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameQUEST DIAGNOSTICS LLC IL
Location Address501 S WHITE ST STE 1Mount Pleasant, IA 52641-2600
Mailing Address4770 Regent BlvdIrving, TX 75063-2445 · Fax (610) 271-4245
Organization SubpartYesParent: Quest Diagnostics Incorporated
Authorized OfficialLeah D TimmermanVice President · (973) 520-2700
Enumeration DateJune 4, 2025
Last NPPES UpdateMay 28, 20262 updates tracked since enumeration
NPPES CertifiedMay 28, 2026
NPI 1942194196 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.
501 S WHITE ST STE 1, Mount Pleasant, IA 52641

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 16D2322277

Quest Diagnostics-Family Med Mt Pleasant · Mount Pleasant, IA
Active · expires Apr 16, 2027
CLIA Number16D2322277
Laboratory TypeIndependent
Certificate Effective DateApril 17, 2025
Certificate Expiration DateApril 16, 2027
Laboratory DirectorKimberly Miller
Laboratory Phone(319) 423-3527
Laboratory LocationQuest Diagnostics-Family Med Mt Pleasant501 S White St Ste 1, Mount Pleasant, IA 52641
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 5

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

Physician Assistant
501 S WHITE ST STE 1
MT PLEASANT, IA 52641
Nurse Practitioner (Family)
501 S WHITE ST STE 1
MT PLEASANT, IA 52641
Physician Assistant
501 S WHITE ST STE 1
MOUNT PLEASANT, IA 52641
Physician Assistant
501 S WHITE ST STE 1
MT PLEASANT, IA 52641
Family Medicine
501 S WHITE ST STE 1
MT PLEASANT, IA 52641

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 1942194196. It was assigned to this organization in the NPPES registry on June 4, 2025.

Where is Quest Diagnostics LLC Il located?

Quest Diagnostics LLC Il is located at 501 S White St Ste 1, Mount Pleasant, IA 52641. The listed phone number is (319) 423-3527.

What is Quest Diagnostics LLC Il's specialty?

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

Does Quest Diagnostics LLC Il hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 16D2322277) is associated with this NPI, valid through April 16, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Quest Diagnostics LLC Il was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.