Quest Diagnostics empowers people to take action to improve health outcomes.
Company Overview

Quest Diagnostics empowers people to take action to improve health outcomes. Derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. Quest annually serves one in three adult Americans and half the physicians and hospitals in the United States, and our 47,000 employees understand that, in the right hands and with the right context, our diagnostic insights can inspire actions that transform lives.


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Latest News

Quest Diagnostics (NYSE: DGX), the world's leading provider of diagnostic information services, today announced that its Board of Directors declared a quarterly cash dividend of $0.66 per share,...


Quest Diagnostics (NYSE: DGX) has just unveiled three new fitness panels on, designed for athletes of every kind, from weekend warriors to gold medalists. Each fitness test panel...


Our Media Statement about COVID-19 Testing This is an evolving situation. Please check back to this page periodically for the latest information For more information, members of the media may...

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Quest Blog - Empowering better health with diagnostic insights.
Media Coverage
MedTech Dive
Quest Diagnostics is broadening access to its multiplex test to detect flu and COVID-19, letting patients self-collect samples for the test at its 1,600 testing centers across the U.S. Previously, patients had to make an appointment at a testing site, where they were swabbed by a clinician.
Jim Davis, who helped lead the Quest Diagnostics response to the COVID-19 pandemic, officially assumed the role of CEO and president Tuesday morning, succeeding the retiring Steve Rusckowski. Davis also was elected to the company’s board of directors. Davis, who came to Quest in 2013 as senior vice president of diagnostics solutions, has served as executive vice president for general diagnostics since 2017.

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Quest Diagnostics Health Trends™

Quest Diagnostics Health Trends™ is a series of reports from Quest Diagnostics on health conditions affecting a large number of Americans. Published in peer-reviewed journals, at scientific conferences and widely as a public service, the reports are designed to inform health care professionals, patients and policymakers about the status of the nation’s health.


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At A Glance...

More than 6,600 patient access points, the most extensive network in the U.S., including phlebotomists in physician offices and more than 2,250 of our own patient service centers. A medical and scientific staff of more than 600 M.D.s and Ph.Ds. Logistics capabilities, that include approximately 3,750 courier vehicles and 25 aircraft that collectively make tens of thousands of stops daily.

Media Resources

Journalists may contact Quest Diagnostics by emailing