Core Points - Corewell Health and Quest Diagnostics have entered into a joint venture to enhance laboratory services in Michigan [1][4] - The joint venture, named Diagnostic Lab of Michigan, LLC, will establish a 100,000-square-foot laboratory facility featuring advanced technologies [2] - Quest will manage Corewell Health's 21 hospital labs and provide a range of laboratory management services [3][5] - The equity ownership of the joint venture will be 51% for Quest and 49% for Corewell Health [4] - The joint venture is expected to be completed in the first quarter of 2026, with the new laboratory operational by the first quarter of 2027 [5] 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 [6] - Quest Diagnostics serves a significant portion of the U.S. population, providing diagnostic insights and laboratory testing services [7][8]