Centralized hospital and clinics in certain locations. Don't allow building healthcare based on maximized spread. When there are multiple alternatives next to each other, it generates not just competition for customers (patients) but also doctors/nurses employments. Also build fully government subsidized hospitals in each of this location to force the private pricing not escalating. Then every hospital admins will need to undergo 6mths IRS audit. This force the job extremely undesirable and reduce the demand for it.