Declan Doyle was named president at Catholic Health's St. Catherine of Siena Hospital in Smithtown, N.Y. 

Kettering (Ohio) Health has made a series of leadership moves that come a little more than a month after new CEO Michael Gentry took the helm, the Dayton Daily News reported Aug. 16. 

Marc Napp, MD, former chief medical officer of Memorial Healthcare System, has been named CEO of the Trajectories Company, a system and process design firm.

Alan Harmatz, MD, was appointed chief medical officer of Medical City Dallas on Aug. 16.

Hazard, Ky.-based Appalachian Regional Healthcare has expanded the duties of regional CEO Jeremy Hall, Mountain Top Media reported Aug. 16. 

Tadren Kennedy was named COO of USC Verdugo Hills Hospital in Glendale, Calif. 

The month of August has been laden with CEO departures from hospitals and health systems — and it's only halfway over. 

Anthony Guaccio, president and CEO of Swedish Hospital in Evanston, Ill., will retire at the year's end. 

Terry Treadwell is leaving his role as CEO of Merit Health River Region in Vicksburg, Miss., The Vicksburg Post reported Aug. 15. 

Mark Sullivan will step down as president and CEO of Buffalo, N.Y.-based Catholic Health on Aug. 31.

Diane Comer, chief information and technology officer of Oakland, Calif.-based Kaiser Permanente is set to retire in January. 

Here seven CFOs who have been named CEOs on a permanent or interim basis since June: 

Bartlett Regional Hospital in Juneau, Alaska, has named Nathan Rumsey acting CEO, more than two weeks after its CEO and CFO left their roles. 

Johnson City, Tenn.-based Ballad Health has appointed chief medical officers to several of its community hospitals in a move that ensures each of the 10 facilities in its Southern Region are represented by a physician leader. 

University Hospital in Newark, N.J., has tapped two new people leaders. 

Fort Lauderdale, Fla.-based Broward Health has appointed chief operating officers to two of its hospitals. 

Memorial Health System has tapped Shawn Dufford, MD, to serve as chief medical officer, the Gulfport, Miss.-based system said Aug. 15.

Melissa Packer has been named CFO of MUSC Health's Lancaster (S.C.) Division, The Lancaster News reported Aug. 14. 

Mitch Cloward was selected as the new Desert Region president overseeing operations for Intermountain Health's Southern Nevada and Southwest Utah markets. 

Some health systems are eliminating their chief operating officers. Others are promoting them to the helm.