Prnewswire·2026-01-05 13:58Core Points - Corewell Health and Quest Diagnostics have completed a joint venture to enhance laboratory services in Michigan, named Diagnostic Lab of Michigan, LLC, with Quest holding 51% and Corewell Health 49% ownership [1][2] - The joint venture aims to provide innovative, quality, and affordable laboratory services, with existing laboratories continuing to serve until a new 100,000-square-foot facility opens in early 2027 [2] - Quest's Collaborative Lab Solutions (Co-Lab) services are now implemented across all 21 Corewell Health hospitals, focusing on supply chain, lab management, patient blood and anemia management, and lab analytics [3] Company Overview - Corewell Health is a not-for-profit health system with over 65,000 employees, including more than 12,000 physicians and 15,500 nurses, serving 1.3 million members through its health plan [4] - Quest Diagnostics provides diagnostic insights from laboratory testing, serving one in three adult Americans and half of U.S. physicians and hospitals, with over 55,000 employees [5]