The NHS is the cheapest way of doing this.
I don't call £120 billion cheap. Nor do I believe that an organisation that employs 1 in 60 of the entire (yes entire, not just working age) population of the country is affordable, efficient or sustainable. The population have to be weaned off "the national treasure" (or sacred cow); it's simply not affordable in its current format.
Nice one NAB (below) I have at least one suggestion that goes towards fixing some of it. Start charging a refunadable deposit for all appointments with GPs, dentists, consultants etc; forfeit if you fail to attend; and, start charging people who attend A&E with non-A&E ailments.