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

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...


Quest Diagnostics Incorporated (NYSE: DGX), the world's leading provider of diagnostic information services, today released the Annual Corporate Responsibility Report for 2020. Titled "A Year of...


Quest Diagnostics (NYSE:DGX) and Mercy today announced that Quest has completed its previously announced acquisition of the outreach laboratory services business of Mercy in an all-cash asset...

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Quest Blog - Empowering better health with diagnostic insights.
Media Coverage
Crain's New York Business
Pfizer, Johnson & Johnson and Quest Diagnostics recently released corporate social responsibility reports detailing their efforts to promote access, diversity and inclusion both internally and externally among the communities they serve. "We continue to have conversations between supervisors and team members on what we need to address," said Cecilia McKenney, senior vice president and chief human resource officer, Quest Diagnostics.
Associated Press
Choose Healthy Life, a national initiative involving Black clergy, United Way of New York City and others, has been awarded a $9.9 million U.S. Department of Health and Human Services grant to expand vaccinations. The federal funding will help establish an infrastructure to start screenings. Quest Diagnostics and its foundation has already provided funding and testing help.

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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