Dr. Gardiner has served as president of Mercy Health St. Joseph Warren Hospital since 2022, leading a 200-bed acute care hospital that provides level 3 trauma center services, a level 2 adult cardiac catheterization program, level 2 obstetrical services and Commission on Cancer-accredited cancer care. The hospital is fully accredited by the Joint Commission and has achieved five-time Magnet designation status. Since joining the Cincinnati-based Mercy Health system in 2018, Ms. Gardiner has led efforts focused on strategy deployment, growth, innovation and operational excellence while building upon the legacy of the Sisters of the Humility of Mary. She has improved clinical and business performance that preserves and expands access to care, spearheading programs focused on clinical expansion, new program development, quality and safety, and associate recruitment, engagement and retention. Recognized as a transformational leader, she earned a 2025 “Athena Leadership Award” nomination and was selected for Leadership Mahoning Valley’s class of 2025. Ms. Gardiner was inducted into the Lorain County Community College Commodore Hall of Fame in June 2024 as part of its inaugural class. She previously served as president of Mercy Health Allen Hospital in Oberlin, Ohio, and as COO and CNO of Mercy Health Lorain (Ohio).
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Becker's Recognition
Charlotte Gardiner, DNP, RNhas been named a Becker's honoree on the lists below.
2026 Winner

Executives
236 Women Hospital and Health System Presidents and CEOs to Know
CEO
