[bilbo0s]

That's because companies like Epic exist.

Their entire business is fixing impedance mismatches.

Your implicated solution is to eliminate impedance mismatches.

Do you think the major med tech firms will be for or against that? What do you think their lobbyists will recommend?

[nradov]

Epic and their competitors never lobbied to retain the national patient identifier ban. The political opposition to national identifiers was based on concerns about patient privacy and federal government overreach.

[benlivengood]

I'd lay the blame closer to interface engine companies (whose job is often to disambiguate MR#) and individual practices (who don't want the overhead of working with centralized MR# source of truth) since Epic makes an entire EHR and can almost certainly interface with any ADT (admit, discharge, transfer) system as a source of truth for medical records.