Quest Diagnostics Incorporated is a provider of diagnostic information services. The Company operates under two segments: Diagnostic Information Services and Diagnostic Solutions. The Diagnostic Information Services develops and delivers diagnostic testing information and services, providing insights that enables a range of customers, including patients, clinicians, hospitals, integrated delivery networks (IDNs), health plans, employers, and accountable care organizations (ACOs). Its Diagnostic Solutions group includes its risk assessment services business, which offers solutions for insurers, and its healthcare information technology businesses, which offers solutions for healthcare providers. The Company's services are provided under the Quest Diagnostics brand, and other brands, such as AmeriPath, Dermpath Diagnostics, ExamOne, Quanum. It also helps in delivering diagnostic insights for COVID-19 and a range of other medical conditions for communities in South Florida.