Sir Toke Talagi has already been in Auckland for nearly two months.
He said he was getting better but was still in need of treatment.
Sir Toke had serious health issues last year, requiring him to be medivacced from the island to New Zealand on two occasions.
Niue passes a deficit budget
Meanwhile, the Niue parliament has passed the 2017 Budget, leaving the island with a deficit of about $US800,000 dollars.