QUEST DIAGNOSTICS
NPI 1265587174
Clinical Medical Laboratory in Ventura, CA

Q: What is Unilab Corporation's NPI number?

The NPI number for Unilab Corporation is 1265587174. It was assigned to this organization in the NPPES registry on January 24, 2007. The provider is doing business as Quest Diagnostics.

Q: What is Unilab Corporation's specialty?

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

Active since January 24, 2007CLIA 05D0584787 · Accreditation

2065 SPERRY AVE STE A, VENTURA, CA 93003(805) 650-4858(805) 967-8960 Get Directions Write a Review

NPPES record last updated: June 16, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 16, 2020, Dec 10, 2018 (2 updates tracked since 2018).

On this page

About Quest Diagnostics NPPES

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

QUEST DIAGNOSTICS (NPI 1265587174) is a healthcare organization registered as a clinical medical laboratory in Ventura, California and active in the NPI registry since January 2007. The organization holds an CLIA Accreditation certificate valid through December 15, 2027 and lists Charles Albert Bowles, Vice President, as its authorized official.

NPPES Registry Identity

NPI1265587174

Entity TypeOrganization

Primary Taxonomy291U00000X

Legal Business NameUNILAB CORPORATION

Location Address2065 SPERRY AVE STE AVentura, CA 93003-7451

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

Phone(805) 650-4858

Fax(805) 967-8960

Organization SubpartYesParent: Quest Diagnostics Incorporated

Authorized OfficialCharles Albert BowlesVice President · (610) 454-6000

Enumeration DateJanuary 24, 2007

Last NPPES UpdateJune 16, 20202 updates tracked since enumeration

NPPES CertifiedJune 16, 2020

✔ NPI 1265587174 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Medical LaboratoryLaboratories

Taxonomy Code291U00000X

License✔ Licensed in CA · 05D0584787

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.

2065 SPERRY AVE STE A, Ventura, CA 93003

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Other Names 1

Doing Business AsQuest Diagnostics

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 Accreditation 05D0584787

Unilab Corporation Dba Quest Diagnostics · Ventura, CA

Active · expires Dec 15, 2027

CLIA Number05D0584787

Laboratory TypeIndependent

Certificate Effective DateDecember 16, 2025

Certificate Expiration DateDecember 15, 2027

Laboratory DirectorDr. Linda Shi

Laboratory Phone(805) 650-4858

Laboratory LocationUnilab Corporation Dba Quest Diagnostics2065 Sperry Ave, Ventura, CA 93003

CLIA data matches this NPI record on: Address Name Phone

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 23

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.

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

1,188 services625 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

1,057 services596 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

757 services555 patients

Manual urinalysis test with examination using microscope, automated 81001

A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.

319 services261 patients

Blood test, clotting time 85610

A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.

229 services119 patients

Magnesium level 83735

A magnesium level test is a simple blood test that measures the amount of magnesium in your body. Magnesium is a crucial mineral that helps your nerves, muscles, and heart function properly. The test can help detect health conditions like kidney disease or malnutrition.

171 services120 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

163 services144 patients

Kidney function blood test panel 80069

A kidney function blood test panel checks how well your kidneys are working. It measures levels of various substances in your blood, including proteins, electrolytes, and waste products. The results can help detect potential kidney issues early.

163 services144 patients

Lactate dehydrogenase (enzyme) level 83615

A Lactate Dehydrogenase level test measures the amount of this enzyme in your body. It's often done when tissue damage is suspected, as high levels can indicate issues like heart disease, lung disease, liver disease, or blood disorders. This test helps in diagnosing and monitoring these conditions.

149 services68 patients

Red blood cell sedimentation rate, to detect inflammation, automated 85652

The Red Blood Cell Sedimentation Rate is a test that helps detect inflammation in the body. It's automated, meaning a machine does the work. This test measures how fast red blood cells settle at the bottom of a tube in an hour. A faster rate may indicate inflammation.

103 services82 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test 85027

A complete blood cell count (CBC) is an automated test that measures different components of the blood, including red cells, white cells, and platelets. It helps assess overall health, detect disorders like anemia or infection, and monitor medical treatments.

94 services88 patients

Measurement c-reactive protein for detection of infection or inflammation 86140

C-reactive protein (CRP) test is a blood test that checks for signs of inflammation or infection in the body. High levels of CRP often suggest that there's inflammation or a bacterial infection. This test helps in monitoring and managing conditions like arthritis and heart disease.

91 services71 patients

Phosphate level 84100

A phosphate level test measures the amount of phosphate in your blood. Phosphate is a chemical that contains the mineral phosphorus, crucial for energy production, muscle and nerve function, and bone growth. Imbalances may indicate kidney disease or other health issues.

74 services52 patients

Blood creatinine level 82565

A blood creatinine level test measures the amount of creatinine in your blood. Creatinine is a waste product that your body produces when it uses energy. High levels may indicate that your kidneys aren't working properly. This test is often used to monitor kidney health.

69 services63 patients

Urea nitrogen level to assess kidney function, quantitative 84520

The urea nitrogen level test is a routine blood test that checks the amount of urea nitrogen in your blood to evaluate how well your kidneys are working. If the levels are higher than normal, it may indicate that your kidneys are not functioning properly.

68 services62 patients

Uric acid level, blood 84550

A blood uric acid level test measures the amount of uric acid in your blood. Uric acid is a waste product that your body produces when it breaks down purines, substances found in your body and in certain foods. High levels may lead to gout or kidney stones.

68 services52 patients

Coagulation assessment blood test, plasma or whole blood 85730

A coagulation assessment blood test evaluates how well your blood clots, helping identify potential bleeding or clotting disorders. This test uses a sample of your plasma or whole blood. It's a standard procedure to ensure your body's clotting process is functioning properly.

65 services65 patients

Natriuretic peptide (heart and blood vessel protein) level 83880

A natriuretic peptide level test is a blood test that helps doctors check for heart failure. It measures the amount of certain proteins that your heart and blood vessels produce when they are under stress. High levels may indicate heart disease.

42 services40 patients

Creatine kinase (cardiac enzyme) level, total 82550

The total Creatine Kinase (CK) level test is a blood test that helps assess the health of your heart. It measures an enzyme called CK that's released into the bloodstream when heart or other muscle tissue is damaged. High levels may indicate a heart attack or muscle disorder.

33 services30 patients

Bilirubin level, direct 82248

A direct bilirubin test measures a form of bilirubin in your blood. Bilirubin is a substance produced during the normal breakdown of red blood cells. High levels may indicate liver or blood disorders. This test helps diagnose and monitor these conditions.

19 services17 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

17 services17 patients

Lipase (fat enzyme) level 83690

A Lipase Level test measures the amount of lipase in your blood. Lipase is an enzyme that helps your body digest fats. High or low levels can indicate problems with your pancreas, such as pancreatitis or other conditions. This test helps your doctor diagnose and monitor these conditions.

13 services13 patients

Coagulation function measurement, d-dimer; quantitative 85379

A quantitative D-dimer test measures the amount of D-dimer, a protein fragment, in your blood. This test helps detect abnormal blood clotting. D-dimer levels can rise in conditions where clots are forming and breaking down, such as deep vein thrombosis or pulmonary embolism.

13 services13 patients

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 1265587174. It was assigned to this organization in the NPPES registry on January 24, 2007. The provider is doing business as Quest Diagnostics.

Where is Unilab Corporation located?

Unilab Corporation is located at 2065 Sperry Ave Ste A, Ventura, CA 93003. The listed phone number is (805) 650-4858.

What is Unilab Corporation's specialty?

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

Does Unilab Corporation hold a CLIA laboratory certificate?

Yes. A Certificate of Accreditation (number 05D0584787) is associated with this NPI, valid through December 15, 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 Unilab Corporation was last updated on June 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.