Mr.Gloster has said it's to give time to prepare for the next phase of leadership.
The head of the Health Service will step down in March.
Bernard Gloster will retire, having served almost 38 years in the public health service, including three in his current role.
Mr. Gloster says he wants to allow time to prepare for the next phase of leadership.
He's also expressed his "deep appreciation" for all of the HSE's staff.
Dublin Mid Leinster regional health forum member Tom Farrell says he was someone who always 'led from the front'
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