A struggle I have seen play out numerous times, and at one point my own company fell victim to it, is that there are these obvious operational inefficiences in healthcare that every tech entrpenuer thinks they can hop onto as an easy oppourtunity. Then they run face first into the wall of a highly regulated industry in which, in most states, corporate power over care is severely restricted. Secondly, the last 5% matters just as much as the first 95%. You have to get to 100% because you are dealing with real people not "transactions".
It took us 10 years to really get the hang of how to create positive operational change in big healthcare systems and it's very nuanced and slow. In a nutshell it's a lot of carrot and stick or maybe a lot of micro-carrot and micro-stick.
Amazon tried the brute force approach with Haven and it failed spectacularly. The pharmacy and one-medical plays were a dip your toes in the water approach but from what I have seen they are replaying most of the same mistakes.