i think the salient features are ... services & emergency
while any reductions are helpful consider the following ...
emergency rooms must maintain equipment & personnel regardless of the number of people seeking service ... it is simply the cost of providing a beneficial and necessary service for the community which i suspect no one would be against
2 days of the week and 16 hours of any other day are not on my doctors office hours ... i, therefore, in case of an "emergency" must seek help in an emergency room, and I am fairly sure my doctor, depending on severity of emergency, would probably send me to a hospital anyway. There is a baseline for which there is probably very little which can be done regarding cost reduction.
I don;t have a feel for other possible ER uses, so won;t speculate. (Apparently there are some people who think of an ER as their family doctor's office.)
All of this is not meant to minimize the impact of preventative medicine. If we assume the reason other industrialized countries have a significantly lower health care cost per capita is they are more healthy than Americans, then using one statistic we are paying at least 50% or more than other countries on that care. WOW!!! But that is only a wow if the assumption is valid.
But you raised another issue which I don;t understand. You said that ER service costs would decrease if certain conditions are met, among which are reduced pressure from non-emergency care, etc. So my question is suppose we did all we could do to immediately reduce the costs of health care, why would a hospital charge any less for their service? why would a doctor charge less for his service? why would a pharmaceutical co charge less for drugs? so while insurance costs were reduced the underlying cost drivers are alive and well and still rising.
The current national point of discussion is the health care industry costs have been rising at higher than inflation and with that rapid rise will impact not only personal finances but our federal budgets. It would appear from this discussion the real enemy are the people who abuse health care through a variety of reasons but mostly from poor health which could have been prevented.
From this I should conclude that it is in the national interest that people should maintain a regimen of healthy preventative care. You can see I have arrived at a political position which many would consider unacceptable.
I think the whole point of all the posts is we got problems ... and there are no easy solutions