About Company

Quest Diagnostics Incorporated is a leading provider of diagnostic information services that operates an extensive nationwide network of patient service centers and clinical laboratories, offering routine and specialized laboratory testing, appointment scheduling, and the MyQuest patient portal for results and appointment management. Quest Diagnostics supports healthcare providers, hospitals, employers, health plans, and biopharma with clinical trial testing, lab management and analytics, drug and employment screening, direct-to-consumer testing via QuestHealth, and a comprehensive test directory, while also providing resources for billing, insurance, and provider tools to integrate diagnostic insights into clinical and operational workflows.

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