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
06012023

Quest Diagnostics Incorporated (NYSE: DGX), the world's leading provider of diagnostic information services, announced that it is scheduled to speak at the William Blair 43rd Annual Growth Stock...

05182023

Increase Seen in the General U.S. Workforce Started Same Year First States Legalized Recreational Marijuana Overall Workforce Drug Test Positivity Persisted at Two-Decade High Across All Workers...

05172023

Quest Diagnostics (NYSE: DGX), the world's leading provider of diagnostic information services, today announced that its Board of Directors has elected Luis A. Diaz, Jr., M.D. to serve as a...

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Quest Blog - Empowering better health with diagnostic insights.
Media Coverage
05182023
CBS News
As the number of cannabis-friendly states across the U.S. has grown, so, too, has the drug's usage among American workers. An annual analysis from Quest Diagnostics medical lab and testing company shows the percentage of general U.S. employees, who tested positive for cannabis in 2022 reached the highest level ever recorded by Quest, which began analyzing annual workplace drug testing data in 1988.
05182023
The Wall Street Journal
As legal marijuana expands in the U.S., a record share of workers is testing positive for the substance in workplace drug screening. Overall drug use among workers tested by employers generally held steady last year, according to an annual tally from Quest Diagnostics, one of the country’s largest drug-testing laboratories. In drug tests given to workers after accidents on the job, marijuana positives rose sharply last year, hitting the highest level in a quarter-century.

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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 mediacontact@questdiagnostics.com