Mr. Ernst has been serving as senior vice president and COO since October 2024. Prior, he served in the role in an interim capacity for four months. For five years prior, he served as vice president of operations for Froedtert Health. He also held prior roles at Louisville-based KentuckyOne Health and Northwestern Memorial Hospital in Chicago.
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Becker's Recognition
John Ernsthas been named a Becker's honoree on the lists below.
2025 Winner

Executives
Academic Medical Center COOs to Know
Academic medical centers are a crucial part of the healthcare delivery system. AMC COOs are committed to streamlining operations to offer excellent patient care using research and innovation.
The COOs heading academic medical centers and health systems across the nation are tasked with leading operations, expanding service lines, allocating resources and more.
COO
