100 Most Influential People in Healthcare - 2024

After orchestrating the merger between Beaumont Health and Spectrum Health into what is now Corewell Health, Decker turned toward synthesizing systems. She oversaw the consolidation of more than 6 million health records into a single instance of Epic; Corewell also uses Epic Payer Platform to connect its health plan with care delivery across the state. The Grand Rapids, Michigan-based organization is investing in its 65,000 team members — more than 4,000 of whom belong to employee-led business resource groups. Under Decker’s leadership, the 21-hospital health system is lowering out-of-pocket maximums and co-pays and providing more paid time off. Outside of Corewell, Decker serves on several health and executive boards and local business leadership organizations: She was selected as the 2025 chair of the American Hospital Association.