Quest Diagnostics is one of the leading providers of diagnostic testing, information and related services to physicians, hospitals, organizations, health care insurers, employers, governmental institutions and other commercial clinical laboratories. The company s capabilities include esoteric and gene-based testing, as well as testing for drugs. It provides anatomic pathology services, testing for clinical trials, and risk assessment services for the life insurance industry. Quest Diagnostics offers services for more than 500,000 patients daily through a national network of laboratories and service centers, and provides interpretive consultation through its medical and scientific staff. The company specializes in developing new diagnostic tests and advanced health care information technology solutions that help improve patient care. Founded in 1967, it is headquartered in Lyndhurst, N.J. Quest Diagnostics is traded on the New York Stock Exchange under the symbol DGX. The company maintains one of its additional locations in San Antonio.