[lmiller1990]

I work as a company that builds software to optimize dosing, and we have apps in a few of the major EHR vendors app stores. FHIR has been great for getting and presenting data - although I think true interop between EHRs using FHIR would be challenging, due to the large amounts of data and the (relative) complexity of each EHR. Despite everyone using FHIR, it does suffer from the same problem other specs like HTML do, everyone has an ever so slightly different implementation, and once it's been implemented, no interest in changing or improving it.