Quest Diagnostics began in 1967 as Metropolitan Pathology Laboratory in New York and later became an independent company under the Quest name after a spin-off from Corning. Quest Diagnostics now focuses on diagnostic information services, offering laboratory testing, gene-based and molecular testing, healthcare information technology, data analytics, lab services, and lab operations. Quest Diagnostics also supports clinicians and consumers through a national laboratory network, patient testing locations, specialty labs, and international collaborations in markets such as India, Ireland, and Mexico.