Updates on COVID-19 (including visitor restrictions and mask requirements), monkeypox and flu. See Communicable Disease Updates

Your browser is out-of-date!

Internet Explorer 11 has been retired by Microsoft as of June 15, 2022. To get the best experience on this website, we recommend using a modern browser, such as Safari, Chrome or Edge.


Clinical Laboratory Scientist Program

Train for your CLS certification at Scripps in San Diego

Two Scripps lab scientists in white coats review a specimen label together.

Train for your CLS certification at Scripps in San Diego

The Clinical Laboratory Scientist (CLS) Training Program at Scripps Health in San Diego offers an intensive, full-time, 12-month educational program for Clinical Laboratory Scientists, providing didactic and practical instruction in all major discipline sections of a large health system clinical lab. Training encompasses performance and evaluation of routine lab tests as well as high-complexity laboratory procedures. The Scripps program is approved by the California Department of Public Health - Laboratory Field Services and has been awarded full accreditation by the National Accrediting Agency for Clinical Laboratory Sciences (NAACLS). NAACLS can be contacted at 5600 N. River Road, Suite 720, Rosemont, IL, 60018-5119, by phone at 773-714-8880 or by email at info@naacls.org.

Completion of the Scripps CLS Training Program and receipt of a passing score on the American Society for Clinical Pathology Board of Certification (ASCP BOC) MLS generalist exam, or other qualifying certification exam, meets CLS licensing requirements in California as well as confers a national MLS certification as a Medical Laboratory Scientist. Refer to the Clinical Laboratory Scientist License (CLS) (Examinations section).

Our program produces highly qualified graduates who are ready to immediately enter the clinical laboratory profession. Our staff includes clinical instructors who are knowledgeable and experienced clinical laboratory scientists, as well as physicians, leaders and other professionals who embrace the role of educator. In keeping with the Scripps mission, we educate trainees in a caring environment and mentor them to make a positive difference in the communities we serve.

Currently, our CLS program does not charge a tuition. Just as Scripps believes all patients should have access to affordable and quality health care, we believe future scientists should have access to affordable and quality education. Please note that students are responsible for costs associated with housing, transportation, textbooks, licensing/certification exam fees, immunizations required for health clearance and medical insurance. A stipend is not offered at this time.

Mission statement

The mission of the Scripps Health Clinical Laboratory Scientist Training program is to provide a program that uses proven educational methodologies to teach best practices in clinical laboratory medicine in both theory and practice, to continuously strive for improvement in outcomes, and to graduate competent, highly skilled professionals who are passionate about quality patient care and outcomes. 

Program goals

Program goals were developed in alignment with our program’s mission, vision and objectives. The goals of the training program are to provide an educational experience for the clinical laboratory science trainees so that graduates will:

  • Demonstrate entry-level technical competence and sound, independent judgment and problem-solving abilities in clinical laboratory professions.
  • Successfully pass licensing and certification examinations and successfully compete for entry-level employment positions as a contributing member of the healthcare community.
  • Demonstrate high standards of professional behaviors and ethics, and a passion for continuous learning.

Vision statement

Upon successful completion of the program, the graduate will transition to a contributing member of the healthcare team, providing quality, timely and cost-effective laboratory results and consult to healthcare providers. The graduate will continue to grow in knowledge and skills, become involved in process improvements, and support the profession through mentorship and publicity.

What is a clinical laboratory scientist?

A clinical laboratory scientist is a health care professional who performs a variety of chemical, hematological, immunologic, microscopic and bacteriological diagnostic analyses on body fluids, such as blood, urine, sputum, stool, cerebrospinal fluid, peritoneal fluid, pericardial fluid, synovial fluid and other specimens. 

A CLS uses sophisticated biomedical instrumentation and technology. The role requires a blend of manual dexterity and reasoned judgement to provide accurate laboratory results that form the basis of approximately 70-80% of all medical decisions. 

Clinical lab scientists are qualified to pursue laboratory and leadership careers in many environments, including hospitals and clinics, reference and forensic institutions, industry (such as biotech and research), and public health. This role is also referred to as a medical laboratory scientist (MLS) or medical technologist (MT).

CLS careers at Scripps Health

You might be asking yourself, “Is a clinical laboratory scientist a good career for me?” A clinical laboratory scientist is a good career for people who enjoy the intrigue and challenge of science and medicine while making a difference behind the scenes by contributing to the diagnosis and treatment of patients. 

Why seek CLS training opportunities at Scripps Health over the many CLS programs in California? As a legacy organization in San Diego, Scripps is consistently honored for clinical innovation, quality care and leadership.

In recent years, Scripps has been recognized by:

  • Newsweek ranked Scripps Memorial Hospital La Jolla as one of the World's Best Hospitals in 2022. The list included the top 250 hospitals globally.
  • Fortune Magazine as one of the 100 Best Companies to Work For (2022)
  • Fortune Magazine as 8th on the list of 30 Best Large Workplaces in Health Care (2022) 
  • U.S. News & World Report in their 2021-2022 annual Best Hospitals list, with the combined programs of Scripps Green Hospital and Scripps Memorial Hospital La Jolla ranked among the best in the nation in six specialties — Orthopedics, Cardiology and Heart Surgery, Gynecology, Urology, Gastroenterology and GI Surgery, and Geriatrics 
  • College of Healthcare Information Management Executives (CHIME) as one of the “Most Wired” health systems in the nation (2019)

One hundred percent (100%) of the graduates of the Scripps Health CLS program have found employment in the clinical laboratory professional field. Most are employed in a hospital setting, where their skills have led to positions as a generalist CLS, who is competent in many areas of the lab. Others have moved directly into specialty areas, such as microbiology, molecular diagnostics and immunology. 

Overall, Scripps is invested in professional growth and training, with specialty nursing programs and fellowships and residencies in medicine to name a few. Our commitment to professional education and advancement is highlighted on the For Health Care Professionals webpage. You can search current job openings on our careers portal.

Pass rates

Scripps has a long history of teaching clinical laboratory professionals and had hosted its own CLS program in the past. Since 2009, the Scripps Lab has provided practical training experiences for medical laboratory technicians and phlebotomists. After revitalizing full lab practical training for clinical laboratory scientists in 2016 under a program partnership with the San Diego CLS Training Program Consortium, Scripps program then became fully autonomous in 2020. 

Since 2016, Scripps Health CLS program trainees have achieved a 100% pass rate on a California qualifying certification exam.

Program Outcome Measures








Number of trainees accepted








Program graduation rate








Pass rate, 1st attempt*








Employed as a CLS within 3 months**








*California licensure qualifying certification exam

**In a clinical laboratory or related field after graduation

CLS program curriculum

Scripps clinical facilities involved in practical training include one core lab and five hospital labs located throughout San Diego County — from Chula Vista in the south to Encinitas in the north. During the training year, each trainee typically is tracked to complete practical rotations at the main core lab and at approximately three of the five hospital labs. All didactic lectures are held approximately once per week using a hybrid format (combination of online and face-to-face presentations).

The Scripps Health Clinical Laboratory Scientist Training Program curriculum includes complementary theoretical, technical and hands-on training, accomplished by both didactic instruction and practical “bench” rotations. 

At the completion of our program graduates will have gained competencies in the following discipline areas:

  • Chemistry; Automated, Manual, Special, Point of Care
  • Phlebotomy and Processing 
  • Urinalysis 
  • Hematology/Coagulation 
  • Microbiology/Parasitology; Processing, Bacteriology, Mycology, Virology, Parasitology, Automation 
  • Transfusion Medicine (Blood Bank)
  • Immunology/Serology 
  • Lab Operations
  • Advanced Topics: Molecular Diagnostics and Flow Cytometry

The names and titles of the program director and faculty, course descriptions/course curriculum, academic calendar, program policies and procedure/rules and regulations are available upon request.

1 of 5

The Scripps hematology laboratory handles a busy morning run.

2 of 5

Patient samples are ready for testing in the blood bank analyzer.

3 of 5

Our success is due to collaboration between lab leadership and Scripps administration.

4 of 5

Our labs use state-of-the-art advanced technology.

5 of 5

This graduate now works for Scripps in a satisfying and rewarding career path.

How to apply

Please review the Admission Requirements for 2023-2024 (PDF, 1 MB) as well as the Application Instructions and Important Program Dates (PDF, 660 KB). When you are ready to apply, submit your “Intent to Apply” and then complete and submit the Application Form (PDF, 1.2 MB).