Quest Diagnostics Incorporated is a provider of diagnostic information services. The Company operates through two businesses: Diagnostic Information Services and Diagnostic Solutions. The Company's Diagnostic Information Services business develops and delivers diagnostic testing information and services to patients, physicians, health plans, hospitals, accountable care organizations (ACOs), integrated delivery networks (IDNs), other commercial laboratories, employers and others. The Company's Diagnostic Solutions offers a range of solutions for insurers and healthcare providers. The Company provides risk assessment services for the life insurance industry. In addition, the Company offers healthcare organizations and clinicians' health information technology solutions and diagnostic products. ExamOne provides risk assessment services to the life insurance industry in North America. ChartMaxx is the Company's enterprise content management system for hospitals.