Vitality has declared the fourth quarter of 2014 their best ever three month period with £15m of new business.
Vitality's results for the second half of 2014 showed that their profits had increased by 11% to £24.4m.
New business sales for the second half of 2014 were worth £51.4m
During this period Vitality rebranded from being PruHealth and PruProtect following its complete acquisition by Discovery.
Neville Koopowitz, CEO of VitalityHealth, said: "Our aim is to grow our share of the private medical insurance market, but also to drive the industry forward and we've made a significant breakthrough in making private medical insurance more relevant to more people by launching products such as VitalityGP (which goes live imminently)."
Herschel Mayers, CEO of VitalityLife, said: "To deliver our best quarter on record while significant corporate changes were taking place is a fantastic testament to the quality of both our team and product offering.
"We are confident that with products designed around customer's needs, such as LifestyleCare Cover (a new product designed to help cover the cost of care in later life), we have the perfect springboard for further growth in 2015 and beyond."