LEWISTON – The Sisters of Charity Health System Board of Directors recently approved changes to its senior management team.

Lee Myles assumed the role of chief executive officer for St. Mary’s Regional Medical Center on Jan. 1. Myles has spent the last 13 years as chief operating officer at Sisters of Charity Health System. In his new role, Myles will be able to focus on the continued development of services on the hospital campus, including overseeing all acute care, behavioral and elder care services.

Jim Cassidy, a 14-year veteran of Sisters of Charity Health System, will continue in the role of chief executive officer with his main focus on strategy, planning and development. This will give Cassidy the opportunity to look at the organization’s broader commitment of service to the community beyond the hospital’s walls.

Former Vice President/Division Leader of Physician Practices Susan Keiler has been named chief operating officer for St. Mary’s Regional Medical Center. Keiler will supervise all physician practices, clinical services, medical affairs, quality and facilities.

The three-member team shares backgrounds in the health care administration field. Myles is a graduate of the College of the Holy Cross and attended George Washington University in Washington, D.C., receiving a master’s degree in health administration. He went on to hold positions at Cary Medical Center in Caribou, St. Joseph’s Hospital in Bangor, and the Waltham Weston Medical Center in Waltham, Mass.

Cassidy graduated with a master’s in public health (medical and hospital administration) from the University of Pittsburgh in Pittsburgh. Before coming to St. Mary’s in 1991, Cassidy was president of the Southwestern Vermont Medical Center.

Keiler joined the St. Mary’s team in 2000 with 15 years of health-care administration experience, including a senior management position at Kaiser Permanente in Atlanta. Keiler received a bachelor’s degree in physical therapy from the University of Vermont and a master’s of health services administration from the University of New Hampshire.