Basically every healthcare reform would be positive, either towards single payer or towards markets, as the current equilibrium is just optimizing extraction. See how the ACA, which was attempting to let insurers force prices of medical services down, led to hospitals buying out massive amounts of private practices, as it's easy to bully 5 doctors, but not a hospital system that is at the same time negotiating for a lot of primary care, specialists, and ar least a third of hospital capacity in the city.