Dr. William Siegart joined On Call International in October 2013 and serves as Chief Medical Officer. In his role, Dr. Siegart oversees the supervision and management of the On Call International Medical Department, including thousands of medical cases each year. He provides medical direction for On Call’s physicians as well as the Nurse Case Manager and Rescue Nurse teams.

Dr. Siegart received his medical degree from NYIT College of Osteopathic Medicine and completed an emergency medicine residency at Pontiac Osteopathic Hospital Emergency Trauma Center. Subsequently, he practiced emergency medicine full-time for 27 years and served as Exeter Hospital Emergency Department Medical Director until November 2013. During his tenure at Exeter Hospital, Dr. Siegart served as the EMS Director, Chair of the Peer Review Committee, and Chair of the Professional Practice Evaluation Committee. He was also a member of the New Hampshire Medical Control Board.

Dr. Siegart resides in New Hampshire with his wife and two children. In his free time, he enjoys music, sports, camping, hiking and outdoor adventure activities.