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Making a difference every single day


convenient locations across the United States

50 million

tests performed each year for patients of all ages


lab tests available to help you find answers

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Optimize business and clinical outcomes

Helping healthcare organizations improve the efficiency of care delivery with technology that connects data to decision-making in tangible, value-creating ways.
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Lab Management

Learn about solutions for lab excellence

Help your system deliver the benefits of diagnostic excellence every day.
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The Quest Diagnostics difference

Bringing together quality, speed, and technology to power advanced, affordable diagnostics for all. No trade-offs required.

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