Quest Diagnostics

Quest Diagnostics Incorporated is one of the world's leading providers of diagnostic testing, information and services. The firm was incorporated in Delaware in 1990. It also serves internationally, including laboratory operations in the United Kingdom, M xico, Puerto Rico and India. Quest Diagnostics Incorporated offers a wide range of diagnostic testing and services for patients and consumers, physicians, hospitals, payors, employers and government. Based in Temecula, Calif., the firm has more than 2,000 conveniently located patient service centers across the United States.