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

Quest Diagnostics works across healthcare to create a healthier world, one life at a time. We connect people, from clinicians to consumers, with laboratory insights that illuminate a path to better health. With a focus on delivering smarter, simpler testing, we help reveal new avenues to identify and treat disease, empower healthy behaviors and improve healthcare management. Quest Diagnostics serves half the physicians and hospitals in the United States and one in three American adults each year, and our nearly 57,000 employees work together to deliver diagnostic insights that inspire actions to transform lives.

Latest News
10222026

Third quarter revenues of $3.10 billion, up 10.0% from 2025, on strong organic revenue growth Third quarter reported diluted earnings per share ("EPS") of $2.78, up 28.7% from 2025; and adjusted...

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Half of patients with the hormonal disorder, which raises risk of heart attack, stroke and kidney disease, may be undiagnosed under current screening thresholds SECAUCUS, N.J., Oct. 19, 2026...

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Test showed 100% specificity, with no false-positive results in the cohort, at both 3- and 5-year follow-up, and sensitivity of 100% and 83.3%, respectively, for predicting disease recurrence...

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Newsroom

Media Coverage
10202026
Fast Company
Patients across the U.S. will soon have access to a new cervical cancer test collected from the comfort of their own home—no stirrups, speculum, or in-person doctor’s visit needed. The life sciences company Waters is partnering with Quest Diagnostics to make Waters’ Onclarity HPV Self-Collection Kit available for use at home. The partnership, announced Tuesday, will begin making self-collection kits available in early 2027.
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On New Jersey
We’re taking a closer look at new research highlighting the risks of tick-borne diseases. A study by Quest Diagnostics, published in JAMA Network Open, found that nearly one in three patients with antibodies for Lyme disease also had antibodies for at least one other tick-borne pathogen. Joining us to break down the findings and explain what they mean for diagnosis and treatment is Dr. Emily Schindler, Medical Director of Infectious Disease and Immunology at Quest Diagnostics.

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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...

Quest provides thousands of laboratory tests, ranging from advanced genomic tests for cancer and rare diseases to routine preventive tests for heart disease, diabetes and other chronic conditions. Our medical and scientific staff consists of over 700 M.D.s and Ph.Ds. We maintain approximately 7,700 patient access points, including approximately 2,000 Quest patient service centers, and a logistics team with over 4,000 courier vehicles and nearly 20 aircraft in the United States.

Media Resources

Journalists may contact Quest Diagnostics by emailing mediacontact@questdiagnostics.com

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