QUEST DIAGNOSTICS
NPI 1093869455
Clinical Medical Laboratory in Walnut Creek, CA

Active since January 23, 2007
108 LA CASA VIA, STE 105, WALNUT CREEK, CA 94598(925) 930-6897 Get Directions Write a Review

NPPES record last updated: December 11, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Quest Diagnostics NPPES

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

QUEST DIAGNOSTICS (NPI 1093869455) is a healthcare organization registered as a clinical medical laboratory in Walnut Creek, California and active in the NPI registry since January 2007. The organization lists Charles Albert Bowles, Vice President, as its authorized official.

NPPES Registry Identity

NPI1093869455
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameUNILAB CORPORATION
Location Address108 LA CASA VIA, STE 105Walnut Creek, CA 94598-3013
Mailing Address1201 S Collegeville RdCollegeville, PA 19426-2998 · (866) 697-8378
Organization SubpartYesParent: Unilab Corporation Dba Quest Diagnostics
Authorized OfficialCharles Albert BowlesVice President · (610) 454-6000
Enumeration DateJanuary 23, 2007
Last NPPES UpdateDecember 11, 2018
NPI 1093869455 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Medical LaboratoryLaboratories
Taxonomy Code291U00000X
License Licensed in CA · 05D0643815
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.
108 LA CASA VIA, Walnut Creek, CA 94598

Other Names 1

Doing Business AsQuest Diagnostics

Other Identifiers 1

OtherLAB43815FCA · Medi Cal

Other Providers at the Same Location NPPES 8

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

Clinic/Center (Dental)
108 LA CASA VIA, SUITE 102
WALNUT CREEK, CA 94598
Family Medicine
108 LA CASA VIA, SUITE 104
WALNUT CREEK, CA 94598
Internal Medicine
108 LA CASA VIA, SUITE 100
WALNUT CREEK, CA 94598
Family Medicine
108 LA CASA VIA, SUITE 104
WALNUT CREEK, CA 94598
General Practice
108 LA CASA VIA, SUITE 106
WALNUT CREEK, CA 94598
Dentist
108 LA CASA VIA, SUITE #102
WALNUT CREEK, CA 94598
Clinic/Center (Rehabilitation, Substance Use Disorder)
108 LA CASA VIA
WALNUT CREEK, CA 94598
Clinic/Center (Sleep Disorder Diagnostic)
108 LA CASA VIA, SUITE 100
WALNUT CREEK, CA 94598

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 Unilab Corporation's NPI number?

The NPI number for Unilab Corporation is 1093869455. It was assigned to this organization in the NPPES registry on January 23, 2007. The provider is doing business as Quest Diagnostics.

Where is Unilab Corporation located?

Unilab Corporation is located at 108 La Casa Via Ste 105, Walnut Creek, CA 94598. The listed phone number is (925) 930-6897.

What is Unilab Corporation'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 Unilab Corporation was last updated on December 11, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.