* Robert DeValentino has been named president and executive director of the Arden Hill Foundation, Goshen, N.Y., and the Horton Healthcare Foundation, Middletown, N.Y. He had been executive director of the Horton Healthcare Foundation.
* Eileen Gibbons has been named chief executive officer of HealthSouth New England Rehabilitation Hospital, Woburn, Mass. She had been chief operating officer.
* Art Layne has been named chief executive officer of St. Luke's Medical Center, Phoenix. He had been vice president of operations for the western region at Vanguard Health Systems, Nashville.
CFOs, CIOs, COOs
* John Higgins has been named vice president and chief financial officer of St. Peter's Hospital, Helena, Mont. He had been system director of planning and analysis at HealthEast Care System, St. Paul, Minn.
* Philip Johnson has been named chief financial officer of Niagara Falls (N.Y.) Memorial Medical Center. He had been vice president of finance and management information systems at Jones Memorial Hospital, Wellsville, N.Y.
* Cameron Welton has been named chief operating officer of Methodist Healthcare, Memphis, Tenn. He had been chief executive officer of Methodist Healthcare-Memphis Hospitals.