About Company

Quest Diagnostics is a leading provider of diagnostic information services that operates a large network of clinical laboratories, patient service centers, and testing solutions to support patients, healthcare providers, employers, health plans, and life sciences organizations. The company delivers laboratory testing and specimen collection across a wide range of specialties—infectious disease, genetics, oncology, cardiometabolic, clinical drug monitoring, and more—while offering consumer-facing services (QuestHealth/QuestDirect), provider tools (Quanum), appointment scheduling, the MyQuest results portal, clinical trial and central lab services, and billing and insurance support. Quest Diagnostics emphasizes regulatory compliance, quality accreditations, fast turnaround times, and integrated diagnostic insights to inform clinical care and research.

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