I commend you trying to tackle such a challenging domain, something that feels should be handled on state level.

As a citizen of Estonia, we pretty much have any government service available over the web, and yes, we also get to enjoy state provided health care, which makes things simpler when it comes to having a single unified system for all health care workers, which we have, have had for quite a while, probably for a decade or more. And it works, including patients who can also log into the system to check any data that is collected on their behalf.