Depends. Kaiser is a great example of this (its a closed loop payer and provider) but it has a huge network within certain regions and doesn't cover nationally. The problem is that CVS via pharmacy retail and MinuteMan only satisfies a part of the whole care provider package. Kaiser on the other hand has it's own providers that carry everything from head to toe (no pun intended). That's why I don't see why this would be such a big deal.