Which is rather ridiculous. The market has already developed several work around solutions for people who lost their doctors and healthcare plans under Obamacare, and allowing market mechanisms to operate is the only way to bring costs down. For the most part, the reason costs are astronomical are the extra requirements inserted by the government (such as transferring patient data to electronic formats), interference in the insurance market (people were constrained to buy insurance from companies in State, hence each company has a much smaller pool and each customer has a more restricted number of providers to choose from. So making the insurance market truly "national" will also provide more competition and choices.
The other issue which distorts the market and makes it difficult to control costs is the market isn't transparent. Few patients know the costs of their treatments, Medicare and Medicaid distort the prices and of course without tort reform, doctors are pretty much forced to order every test imaginable to cover their butts in case of malpractice suits. Opening the market (such as with "cash and carry" Doctors) can do wonders when people can "shop around" for the best prices for routine care, and the best prices for "catastrophic" insurance coverage.