DBA QUEST DIAGNOSTICS INCORPORATED
NPI 1659390763
Clinical Medical Laboratory in West Hills, CA

Q: What is Unilab Corporation's NPI number?

The NPI number for Unilab Corporation is 1659390763. It was assigned to this organization in the NPPES registry on July 19, 2006. The provider is doing business as Dba Quest Diagnostics Incorporated.

Q: What is Unilab Corporation's specialty?

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

Active since July 19, 2006CLIA Certified · 2 labs

8403 FALLBROOK AVE, WEST HILLS, CA 91304(800) 877-2515 Get Directions Write a Review

NPPES record last updated: December 10, 2018. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Dba Quest Diagnostics Incorporated NPPES

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

DBA QUEST DIAGNOSTICS INCORPORATED (NPI 1659390763) is a healthcare organization registered as a clinical medical laboratory in West Hills, California and active in the NPI registry since July 2006. The organization holds 2 active CLIA laboratory certificates and lists Charles Albert Bowles, Vice President, as its authorized official.

NPPES Registry Identity

NPI1659390763

Entity TypeOrganization

Primary Taxonomy291U00000X

Legal Business NameUNILAB CORPORATION

Location Address8403 FALLBROOK AVEWest Hills, CA 91304-3226

Mailing Address1201 S Collegeville RdCollegeville, PA 19426-2998 · (866) 697-8378

Phone(800) 877-2515

Organization SubpartYesParent: Quest Diagnostics Incorporated

Authorized OfficialCharles Albert BowlesVice President · (610) 454-4122

Enumeration DateJuly 19, 2006

Last NPPES UpdateDecember 10, 2018

✔ NPI 1659390763 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Medical LaboratoryLaboratories

Taxonomy Code291U00000X

License✔ Licensed in CA · 05D0939429

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.

8403 FALLBROOK AVE, West Hills, CA 91304

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Other Names 1

Doing Business AsDba Quest Diagnostics Incorporated

CLIA Laboratory Certificates CMS CLIA 2

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 Accreditation 05D0939429

Quest Diagnostics · West Hills, CA

Active · expires Sep 7, 2026

CLIA Number05D0939429

Laboratory TypeIndependent

Certificate Effective DateSeptember 8, 2024

Certificate Expiration DateSeptember 7, 2026

Laboratory DirectorDr. Michael J. Wile

Laboratory Phone(805) 404-1352

Laboratory LocationQuest Diagnostics8403 Fallbrook Ave, West Hills, CA 91304

CLIA data matches this NPI record on: Address Name

This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Accreditation 05D0642827

Quest Diagnostics · West Hills, CA

Active · expires Feb 27, 2027

CLIA Number05D0642827

Laboratory TypeIndependent

Certificate Effective DateFebruary 28, 2025

Certificate Expiration DateFebruary 27, 2027

Laboratory DirectorDr. Thomas Mcdonald

Laboratory Phone(818) 737-6183

Laboratory LocationQuest Diagnostics8401 Fallbrook Ave, West Hills, CA 91304

CLIA data matches this NPI record on: Name

This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

21,046 services11,066 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

9,236 services3,531 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

2,913 services677 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

2,047 services892 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.

1,499 services1,153 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

1,202 services494 patients

Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician G0124

This is a routine health check where a sample of cells is collected from the lower region of the female reproductive system. The sample is preserved and prepared using automated technology for detailed examination. A doctor interprets the results to check for any abnormalities.

844 services829 patients

Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416

This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.

586 services484 patients

Pap test 88141

A Pap test is a routine exam that checks for changes in cells that could signal a health concern. During this test, a small sample of cells is gently collected from the lower region of the body. The sample is then examined under a microscope to ensure everything looks normal.

396 services355 patients

Special stained specimen slides to examine tissue, each multiplex procedure 88344

Special stained specimen slides are used to study tissue in detail. This multiplex procedure involves applying different dyes to the tissue sample on a slide to highlight specific elements. These colors help identify any abnormalities in the tissue, aiding in accurate diagnosis and treatment planning.

331 services100 patients

Surgical pathology consultation and report on referred slides prepared elsewhere 88321

A surgical pathology consultation involves reviewing slides prepared at a different lab to confirm or clarify a diagnosis. It's a second opinion to ensure accuracy. A report with findings and interpretations is then provided for your doctor's reference.

231 services200 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

229 services90 patients

Evaluation of fine needle aspirate with interpretation and report 88173

This procedure involves using a thin needle to collect a small sample from an abnormal area or lump. The sample is then examined under a microscope to identify any potential issues. A report of the findings is provided for further analysis.

228 services187 patients

Preparation of tissue for examination by removing any calcium present 88311

This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.

125 services63 patients

Pathology examination of tissue using a microscope, limited examination 88300

A pathology examination of tissue using a microscope is a procedure where a small sample of your tissue is observed under a microscope. This limited examination helps identify any abnormal cells or signs of disease, aiding in accurate diagnosis and treatment planning.

66 services54 patients

Pathology examination of tissue using a microscope, moderately high complexity 88307

A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.

56 services33 patients

Pathology examination of tissue using a microscope 88302

A pathology examination of tissue involves studying a small sample of your body's cells under a microscope. This helps identify any abnormalities or diseases, such as cancer. The process is crucial for accurate diagnosis and treatment planning.

13 services11 patients

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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.

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