Glad to see this thread resurrected - I haven't made much progress with this idea in the past year but it has been something I think about frequently.  Utilization of a blockchain for faster payment, accurate billing, and potential storage of medical records (something to make it accessible by all, but private to the individual and that person's providers) would be large improvements.  Certainly in a place like the USA, there would have be larger changes happening to make this effective, but as others mentioned in smaller countries where there is less regulation and red tap the possibilities for integration into crypto technologies could be a huge win.