Memorial Hermann CEO David Callender to Retire; Alec King Named Successor

Callender’s tenure, which began in 2019, focused on broad systemic transformation, prioritizing patient access and clinical capacity within the Greater Houston area. During his leadership, the organization invested hundreds of millions of dollars into charity care and community health initiatives, a legacy that board chair Greg L. Armstrong credits with stabilizing the system’s financial and strategic position. The transition follows a multi-year succession plan designed to maintain continuity as the health sector faces increasing operational complexity.

Alec H. King, who joined the system in 2020, has overseen a diverse portfolio including cybersecurity, supply chain management, and revenue cycles. His elevation to the CEO position signals a focus on the digital and strategic capabilities developed during his time as CFO. Both executives will work in tandem through the remainder of the year to finalize the handover, with Callender’s final day set for December 31, 2026.