About Us


Who We Are

Diagnostics Made Easy

L&L Diagnostics is a Clinical Laboratory Improvement Amendments (CLIA) certified medical reference laboratory based in Covina, California. Our high-complexity lab serves physician offices and strives to provide our customers with reliable, high-quality lab results in a timely manner. We typically release test results within 12-24 hours of specimen receipt, depending on the test.

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Accurate, Reliable Results for Safer Science and Care

We offer a full range of testing, from general chemistry to molecular microbiology and customized molecular testing with qPCR for physician offices. Additionally, L&L Diagnostics offers inpatient treatment programs and outpatient recovery centers throughout the state of California.
L&L Diagnostics is dedicated to providing efficient, white glove service to physicians and their patients. Our mission is to provide these levels of care while achieving rapid turnaround times and accurate results. To meet these goals, we utilize cutting-edge laboratory and I.T. technology, along with outstanding customer service personnel, quality control measures, and convenient operating hours.
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