Diane Comer was chosen as chief information technology officer of Oakland, Calif.-based Kaiser Permanente.

Erik Helms has been chosen as the new senior vice president and chief payer performance officer of Novant Health, the Winston-Salem, N.C.-based organization said April 7.  

The following hospital and health system CEO moves have been reported in April:

Peter Slavin, MD, president of Massachusetts General Hospital in Boston, is leaving the institution, according to The Boston Globe.

Christina Oh has been named the new CEO of Charleston, S.C.-based Trident Health, the health system said April 6.

Linda McHugh has been chosen as chief experience and people officer of Edison, N.J.-based Hackensack Meridian Health.

Mark Marsh has been tapped as the next president and CEO of Owensboro (Ky.) Health, effective June 7.

The following hospital and health system executive retirements have been reported since March 8.

The following leadership moves by women have been reported since March 25:

The following hospital and health system executive moves have been reported by or shared with Becker's since March 26:

Brentwood, Tenn.-based LifePoint Health has named vice presidents Michelle Augusty and David Fausett to new roles.

Will Ferniany, PhD, is retiring as CEO of Birmingham, Ala.-based UAB Health System.

Two hospitals in Dallas-based Tenet Healthcare's Northern California Group have appointed new leaders. 

Henry Howe was chosen as permanent CFO of Nashville, Tenn.-based Envision Healthcare, the national medical group said March 31.  

Lance Boyd is leaving his role as CEO of Merit Health Natchez (Miss.), the Natchez Democrat reported March 31.

The following hospital and health system COO moves have been reported since March 9.  

Greg Raymond has been chosen to serve as southern region president for Aurora-based Children's Hospital Colorado, the organization said.

The following hospital and health system CEO moves have been reported since March 24:

Joan White-Wagoner has been named CEO of Pasco, Wash.-based Lourdes Health, the organization said.

Bob Lonis will retire as CFO of Fayetteville, Tenn.-based Lincoln Health System, allowing him to spend more time with family, the hospital said March 30.