Quest Diagnostics is the world’s leading provider of diagnostic information services. Through our QuestDirect services, a website where consumers wishing not to have their claim submitted to their health plan can purchase tests themselves, we are also at the forefront of the movement for consumer empowerment in healthcare, turning lab results into actionable insights that help people lead healthier lives. Quest has performed more COVID-19 diagnostic laboratory services (17+ million tests since March) than any other provider in the United States.
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