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Laboratory Services

Serving patients in Ventura County


Laboratory Services

Our hospital laboratories provide excellence in clinical laboratory and pathology services for medical providers and outpatients across Ventura County.

Dignity Health Laboratories provide excellence and expertise in clinical and pathology laboratory services to hospital inpatients, emergency room, and outpatient populations. We are comprised of skilled phlebotomists, clinical laboratory scientists, courier, and administrative staff from award-winning hospitals; St. John’s Hospital Camarillo and St. John’s Regional Medical Center. 

When coming for lab work, please bring a photo ID and your insurance information along with your doctor’s order. There are cash discounts available at the time of service.

Frequently Asked Questions

Do I have to fast before my blood tests?

You need to fast if your doctor has ordered a fasting test. This means that you cannot eat anything and may only drink clear water for 12-14 hours prior to your test. You should continue to take your medications unless otherwise instructed by your doctor. Some common fasting tests include: fasting glucose, fasting lipid panel, fasting metabolic panel, fasting cholesterol, HDL, or triglyceride. If you are uncertain about whether or not you should fast, please contact your healthcare provider.

How long should I fast?

If your doctor did not tell you how long to fast, you should not eat anything and only drink clear water for approximately 12-14 hours prior to the test.

I did not fast for a fasting test. Can I have my blood drawn anyway? 

Because certain test results may be influenced by what you eat or drink, we prefer that you do not have your blood drawn if your tests were ordered as fasting.

Can I have coffee if I am having a fasting test?

No, you can only have clear water prior to a fasting test for 12-14 hours, or for the time period that your healthcare provider has instructed.

How can I learn more about lab tests?

It is always recommended that you speak with your health care provider regarding your tests and test results. You can find helpful information about lab testing by visiting this site

Do I need an appointment for lab tests?

No, you do not need to make an appointment. 

What do I need to bring to the patient service center for my blood draw?

Please bring your insurance card, your picture ID, and the doctor’s order for your lab tests.

Can I get a copy of my test results directly from the laboratory?

Yes, however per California state law, you must first obtain authorization from your health care provider in order for the laboratory to release them directly to you. You can also request copies directly from your health care provider.

  • Patients' direct access to lab test results is governed by two federal laws: (1) the Clinical Laboratory Improvement Amendments of 1988 (CLIA), which regulates all clinical lab testing performed on humans, and (2) the Health Insurance Portability and Accountability Act (HIPAA) Privacy Rule, which exempts CLIA labs from providing lab test results directly to patients unless states allow it. Under CLIA, a lab can disclose patient test results only to (1) a referring lab, (2) an individual responsible for using the test results in the treatment context, or (3) an “authorized person.” States can define an “authorized person” as a health care provider, patient, or both.

  • California State law, under California Business and Professions code §1288 requires that any person conducting or operating a clinical laboratory may accept assignments for tests only from and only make reports to persons licensed under the provisions of law relating to the healing arts, or their representatives.

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5051 Verdugo Way, Ste. 130
Camarillo, CA  93012     
Phone: (805) 810-0600
Fax: (805) 810-0602
Hours: Mon. to Fri., 7 a.m. to 5 p.m.  (Walk-ins only)

The Medical Pavilion at St. John's
1700 N. Rose Ave., Ste. 360
Oxnard, CA  93030     
Phone: (805) 778-8100
Fax: (805) 778-8101
Hours: Mon. to Fri., 7 a.m. to 5 p.m. (Walk-ins only)

Westlake Village
32144 Agoura Rd.., Ste. 114
Westlake Village, CA 91361
Phone: (818) 879-6540
Fax: (818) 879-6514
Hours: Mon. to Fri., 8 a.m. to 12:30 p.m. , 1:30 p.m. to 5 p.m. (Walk-ins only)