Quest Diagnostics Inc was incorporated in Delaware in 1990. The Company and its subsidiaries are the providers of diagnostic testing. The Company operations are organized in two business groups; Diagnostics Information Services and Diagnostic Solutions group. The Diagnostics Information Services business is a provider of diagnostic information services, which includes providing clinical testing services such as routine testing, gene-based and esoteric testing, anatomic pathology services and drugs-of-abuse testing, as well as related services and insights. The Company offers patients, physicians, hospitals, IDNs, health plans, employers and others the broadest access in the United States to diagnostic information services through its nationwide network of laboratories, Company-owned patient service centers and phlebotomists in physician offices. It provides interpretive consultation through the medical and scientific staff in the industry, including over 725 M.D.s and Ph.D.s, located in the United States, many of whom are recognized leaders in their fields, and genetic counselors. Diagnostic Solutions group offers solutions for insurers, healthcare providers and others. The Company is a provider of risk assessment services for the life insurance industry. The Company is a provider of testing for clinical trials. In addition, it offers healthcare organizations and clinicians robust information technology solutions and diagnostic products, including test kits. The Company is subject to or impacted by extensive and frequently changing laws and regulations in the United States (at both the federal and state levels) and the other jurisdictions in which it conducts business.