Dave Smith has resigned as CEO of Lancaster, Wis.-based Grant Regional Health Center, effective at the end of December. 

Evansville, Ind.-based Deaconess Health System has named Will Davis its Illinois region president. 

NYC Health & Hospitals in New York City has appointed two new chief medical officers to serve at its hospitals in Elmhurst and Queens. 

Nashville, Tenn,-based Vanderbilt University Medical Center has appointed Chad Fitzgerald as executive vice president and leader of its clinical support services division, effective Jan. 1.

Marilyn Margolis has retired as CEO of Emory Johns Creek (Ga.) Hospital, and a new CEO has not — and will not — be named. 

A longtime executive with Penn Medicine is the new interim president of the University of Pennsylvania, replacing Liz Magill after her resignation. 

UC San Diego Health has named Karandeep Singh, MD, as its inaugural chief health artificial intelligence officer, a newly created C-suite role for the health system. 

WellSpan Health has named Alyssa Moyer, MD, president of its 593-bed York (Pa.) Hospital. 

James Rohrbaugh is leaving his role as CFO of Pittsburgh-based Allegheny Health Network to "pursue other opportunities," according to a Dec. 10 news release from the health system. 

Ernie Bovio is stepping down as president of Raleigh, N.C.-based UNC Health Rex to become president of Novant Health New Hanover Regional Medical Center and Coastal Market in the Wilmington, N.C. region.

Tonya Darner was appointed the permanent chief executive officer of UP Health System-Marquette (Mich.).

In a year marked by record-high CEO turnover, these hospital and health system CEOs have resigned — or shared plans to step down — since January: 

Chicago-based CommonSpirit Health, led by Wright Lassiter III, is a nonprofit, Catholic health system that operates 142 hospitals and more than 2,200 care sites in 24 states. 

UPMC has named Brian Durniok president of Erie, Pa.-based UPMC Hamot and its Northwest Pennsylvania and New York market. 

Grand Rapids, Mich.-based Corewell Health has named Robert Fitzgerald, MD, president of its Helen DeVos Children's Hospital. 

Sinai Chicago has named Kenneth McGhee executive vice president of finance and CFO. 

Jacksonville, Fla.-based Baptist Health has named Ed Hubel president of Baptist Medical Center Clay, its newest hospital. 

Cambridge, Mass.-based Beth Israel Lahey Health has established new senior management positions and named a new CFO.

Adam Copher, DNP, MSN, has been named chief nursing officer of HCA Florida Bayonet Point Hospital in Hudson, Fla. 

Jerry Klein, COO of Gillette, Wyo.-based Campbell County Health, is stepping down from his post.