AdventHealth has named Michael Mewhirter as CEO of AdventHealth Celebration, effective Feb. 2, following Amanda Maggard’s appointment as chief people officer for the health system’s Multi-State Division.
“Michael’s return to AdventHealth Celebration marks a meaningful homecoming,” said Doug Harcombe, CEO of AdventHealth Central
Mewhirter previously served as vice president and chief operating officer of AdventHealth Celebration before accepting his most recent role as AdventHealth East Orlando CEO. During his tenure as COO, AdventHealth Celebration expanded to include a new eight-story patient tower, and broke ground on the offsite AdventHealth Meadow Woods ER. Mewhirter’s previous experience includes a variety of leadership roles at Kettering Health in Ohio, as well as AdventHealth Waterman and AdventHealth North Pinellas.
“It’s an honor to return to AdventHealth Celebration and serve alongside such a dedicated team,” he said. “I’m also deeply grateful for the time I’ve spent with the exceptional caregivers and leaders at AdventHealth East Orlando, whose passion and commitment to our mission have had a lasting impact on me. As I step into this new role, I look forward to supporting our teams and working with our physicians and community partners to continue advancing whole-person care for the families who trust us every day.”
Mewhirter earned a Master of Business Administration from Webster University and a bachelor’s degree in business administration from Union Adventist University. He is a member of the Advisory Board Fellowship.
AdventHealth
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Jennifer Napier Senior Manager, Community Engagement
- January 13, 2026
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