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Holiday schedule

Our Patient Service Centers will be closed on Friday, July 4, 2025 in observance of the Fourth of July holiday.  Have a healthy, happy holiday.

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Quest Diagnostics

What we do

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We’re powering care by putting our data and science to work

Laboratory diagnostics are fundamental to your health and the health of our communities, but there’s so much more we can do. Today, we’re leading the way in advanced gene-based and molecular testing, healthcare IT and data analytics, lab services and lab operations, and wellness and population health.

Making lifesaving advanced diagnostics more accessible

By combining our national footprint and innovations in genomics and molecular testing, we’re making it easier for providers and hospitals to bring advanced diagnostics into their daily practice to save lives. The power of Quest's advanced diagnostics doesn’t stop at the broad portfolio of tests. Its true strength sits in the clinical support and service that ensures providers have the confidence that they can do what’s best for their patients.

Building IT and data analytics tools that make healthcare work better and insights go farther

As the leading national provider of diagnostics testing, we have a tremendous wealth of data that are instrumental in enhancing healthcare. Whether it’s improving outcomes and reducing costs by helping providers utilize the right test at the right time, or by identifying gaps in care to ensure that people are getting the care they need, we’re at the forefront of turning data into meaningful results. 

Behind this data is our Quanum® suite of technology solutions that enables secure and seamless ordering, processing, and sharing of test results to ensure that healthcare providers can access information easily and quickly make important care decisions.

Learn about the Quanum suite of solutions

Creating the lab operations and infrastructure of the future

We’re not just innovating the latest lifesaving diagnostics, we’re rethinking how and where diagnostics get done. We work together with leading hospitals and health systems to create custom solutions and processes that help you get the most from your laboratory resources.

By investing in the design and construction of our Clifton laboratory, we’ve developed a purpose-built diagnostic powerhouse for those who are transforming healthcare. This combination of first-of-its-kind automation and our digital lab services platform results in more insight for a greater number of people. 

See the Clifton lab

Learn about Quest Professional Lab Services

 

Taking action towards health equity

The COVID-19 pandemic laid bare the health disparities that have been growing within our society for all to see. Infection rates and death rates disproportionately impact people of color as well as those living in communities of low-income households. 

Learn more

Reducing risk and extending care for individuals and populations

Being at the center of healthcare means we can provide smarter solutions that lead to better health, better experiences, and reduced costs without tradeoffs. Our portfolio of services creates real benefits for employers and employees, payers and members, and entire populations.

From identifying and managing risk, to connecting you to the care and special attention you need, we create a virtuous cycle where better health and well-being are the results we can all be most proud of.

Learn more about Employer Population Health

Our company

Our company

Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2025 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.