This would probably be harder to implement in this manner than you think because insurers and hospitals have an increasingly financial/hedgefund owner slant and

This would probably be harder to implement in this manner than you think because insurers and hospitals have an increasingly financial/hedgefund owner slant and those guys basically specialize in fuckery to get around bans. You would probably be better off mandating each provider take medicare/medicaid for up to some percentage of their work (say 40%), negotiate a hard bargain on that pricing, and then opening whichever one you choose up to people that don't currently qualify for some reasonable premium upcharge. You could even integrate that into business insurance plans so that businesses can provide more on top of this service as a benefit if they chose (but you wouldn't lose basic coverage if you got unemployed)