To control health care costs, we need single, public payer system. The HCA takeover of Denver non-profit hospitals shows how profitable health care is. Republicans kept it that way by blocking single payer and leaving insurance companies, huge medical companies, and doctors are in control. Many doctors are working for hospitals or corporations rather than private practice because of the financial incentives.
The obvious solution to the health care problem was Medicare for everybody, and then cost controls on what Medicare funds. Obvious problems are the last six months of life for older people who incur huge costs that don't produce better quality of life, just longer life, as well as younger people with hugely expensive diseases, and of course the multiple unnecessary tests.