[matt4077]

How long do US citizen stay with a single healthcare provider (/insurance)? If, say, only 50% are still with the same provider at age 50 as they were at age 30, there is a discount on the benefits of preventative measures compared to single-payer systems.

[thedaemon]

As a US citizen I can say that we change Healthcare providers whenever our current employer changes our Healthcare provider option. This can be every single year.