The Minister for Health James Reilly has said no acute hospital will close as a result of the reorganisation of hospitals.
James Reilly is about to announce details of the restructure - which will see the country's 49 hospitals merged into six groups.
They will be Dublin North East; Dublin Midlands; Dublin East; South/South West; West/North West and Midwest.
Minister Reilly said he is committed to securing and further developing the role of smaller hospitals, which he said will provide more services, not fewer.
Under the plan, called "Future Health", larger hospitals will carry out more complex surgeries, with smaller hospitals responsible for simpler treatments.
DUBLIN NORTH EAST COMPOSITION
Beaumont; Our Lady of Lourdes, Drogheda, Connolly; Cavan General; Rotunda; Louth County; Monaghan
ACADEMIC PARTNER: RCSI
DUBLIN MIDLANDS COMPOSITION
St James's; The Adelaide and Meath (Tallaght) including the National Children's; Midlands Regional Tullamore; Naas General; Midlands Regional Portlaoise, the Coombe Women and Infant University Hospital
ACADEMIC PARTNER: Trinity
DUBLIN EAST COMPOSITION
Mater University; St Vincent's University, Midland Regional Mullingar; St Luke's General Kilkenny; Wexford General; National Maternity Hospital (Holles Street); Our Lady's Navan; St Columcille's; St Michael's Dun laoghaire; Cappagh National Orthopaedic, Royal Victoria Eye and Ear;
ACADEMIC PARTNER: UCD
SOUTH/SOUTH WEST COMPOSITION
Cork University; Waterford Regional; Kerry General; South Tipperary General; South Infirmary Victoria University; Bantry General; Mallow General; Lourdes Orthopaedic;
ACADEMIC PARTNER: UCC
WEST/NORTH WEST COMPOSITION
University Hospital Galway; Merlin Park University; Sligo Regional; Letterkenny General; Mayo General; Portiuncula; Roscommon County;
ACADEMIC PARTNER: NUIG
Mid Western Regional Limerick; Ennis General; Nenagh General; St John's Limerick; Mid Western Regional Maternity; Mid Western regional Orthapaedic
ACADEMIC PARTNER: UL