Irish Life Health's increasing it's premiums by an average of 4.5% from the 1st of January.
The company says it is due to very substantial price inflation in hospital procedure prices.
In a statement it says hospitals have experienced significant increases in costs, which in turn has increased the cost of providing care to patients.
Managing Director Ger Davis says it recognises these changes will be difficult for customers who are already experiencing price increases in many areas.
