Dr John Killeen has taken over as interim chaor of West / North West Hospitals Group.
He replaces Noel Daly who resigned from the position last week.
Noel Daly's resignation came amid controversy about his company, the Health Partnership, being asked to review maternity services across the west Northwest region.
The union IMPACT welcomed the resigntation stating that Mr Daly's position had become untenable. The union has called for an independent review of what it describes as 'the fiasco'.
This week, at an extraordinary meeting of the board of the West / North West Hospitals Group, board member Dr John Killeen agreed to take on the voluntary role of interim chair.
He takes the position pending the imminent appointment of a new chairperson by the Minister for Health.
Dr Killeen joined the board in January 2013. He is an engineer by profession and a native of County Roscommon who became an Honorary Freeman of Galway City in 2012.
The next meeting of the board will take place as scheduled in Sligo Regional Hospital on July 1st.