A true free market in medical care would have medical care responding to demands for lower prices by consumers of medical care. It has not been a free market in a long time because of 3rd and 4th party influences on the transaction.
That need has not been addressed yet as Republicans would consider that objectionable socialism.
What's been addressed is free market insurance to cover health care delivery costs.
Same problem. When State/Federal agencies, as third parties, dictate the allowable terms of insurance, there is no free market. States have been regulating these transactions for a long time. Corporations, participating as fourth parties to the transaction, make it even less of a free market to the extent that they either fund or self insure the purchase of the product.