http://yw7nc56v4nsudvwewhmhhwltxpncedfuc43qbubj4nmwhdhwtiu4o6yd.onion/t/why-the-state-s-monopoly-on-identity-is-more-dangerous-than-google-facebook-and-microsoft/183
For healthcare, only your medical condition should be relevant (in fact, it should be against the Hippocratic Oath to deny medical treatment to people without ID, especially if they are paying out-of-pocket in cash). For authentication or trust purposes, it should be enough to say your name, use a password/PIN (e.g. SMS code to pickup mail), cryptographic keypair (such as in Bitcoin), pseudonymous reputation network (e.g. online reviews, vouches from friends) or...