Sonora Quest Laboratories, a joint venture between Banner Health and Quest Diagnostics, is the nation’s largest integrated laboratory system with approximately 3,100 employees serving more than 23,000 patients every day throughout Arizona. We offer a local comprehensive test menu which encompasses routine, molecular, prescription drug monitoring, genetics/genomics, and pathology testing services. This is a corporate office only. Patient care services,... Read More about Sonora Quest Laboratories - Corporate Office