Laura Kaiser will become president and CEO of SSM Health, St. Louis, on May 1. She will replace William P. Thompson, who will retire at the end of April after 37 years with the organization. Kaiser had been executive vice president and chief operating officer of Intermountain Healthcare, Salt Lake City, for the past five years. Previously, she spent 15 years at Ascension Health, St. Louis, in a number of leadership roles, including president and CEO of Sacred Heart Health System.

Keith Zimmerman will become CEO of HCA’s Medical City Arlington (Texas) on April 1. Cathy McLaughlin, R.N., was named chief nursing officer and Eric Benink, M.D., was appointed chief medical officer. Zimmerman had been CEO of Medical City Children’s Hospital since 2013. McLaughlin held leadership positions at both Medical City Plano (Texas) and Medical City Dallas. Benink had been CMO at Regional One Health, Memphis, Tenn., since 2014.

Medical City Arlington (Texas) CEO Winston Borland will retire March 31 after a 34-year career with Hospital Corporation of America. Borland has been with HCA since 1983 and has been CEO of Medical City Arlington since January 2010. Prior to joining Medical City Arlington, he was COO of Medical Center of Plano (Texas); CEO of HCA Northwest Regional Hospital in Corpus Christi, Texas; and vice president and group chief financial officer of Epic Healthcare in Dallas. Under his leadership, Medical City Arlington has seen significant growth, including development of Medical City ER Grand Prairie (Texas), the addition of 24 intensive care unit beds, a 16-bed inpatient rehabilitation unit and expanded program development.