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

Second quarter revenues of $2.40 billion, up 2.5% from 2023 Second quarter reported diluted earnings per share ("EPS") of $2.03, down 1.0% from 2023; and adjusted diluted EPS of $2.35, up 2.2%...


BALTIMORE, Md. and BASKING RIDGE, N.J., July 18, 2024 (GLOBE NEWSWIRE) -- Haystack Oncology, a Quest Diagnostics (NYSE: DGX) company, and Lisata Therapeutics, Inc. (Nasdaq: LSTA), a clinical-stage...


Goal to broaden access to cost-effective and innovative laboratory services in Ohio SECAUCUS, N.J. and COLUMBUS, Ohio, July 10, 2024 /PRNewswire/ -- Quest Diagnostics (NYSE: DGX), a leading...

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Quest Blog - Empowering better health with diagnostic insights.
Media Coverage
Quest Diagnostics raised its 2024 profit and revenue forecasts on Tuesday, banking on robust demand for its health tests. Demand for diagnostic tests has grown in recent quarters as more people, especially older adults, caught up on surgeries deferred during the pandemic. "This performance is due to growth of new physician and hospital customers, more favorable test mix that includes greater adoption of advanced diagnostics," Quest CEO Jim Davis said.
Here’s what experts say your AMH level can and can’t tell you about your fertility. “An AMH test could be the first step. Anything that initiates discussions between you and your spouse or your significant other and your health care professional I think is incredibly valuable,” says Damian Alagia, MD, Senior Medical Director for Advanced Diagnostics and Women’s Health at Quest Diagnostics on behalf of

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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