Nationwide Health Information Exchange on #FHIR

Most use of FHIR today is as an API to an organizations health information (EHR). This solution is maturing nicely, although it has issues that are being worked on. However what is being asked latey is how does one scale FHIR to a nation. I spoke of this scale problem in past articles. It is very different than the scale success that REST is often sited as solving, which is one server to millions of clients. In healthcare we have...