That's not true as a generalization. The newly mandated HL7 FHIR standards are a huge step forward in interop [1], and we've seen varying but progressively impr

That's not true as a generalization. The newly mandated HL7 FHIR standards are a huge step forward in interop [1], and we've seen varying but progressively improving levels of support from all leading EHR vendors. The immediate deadline mandates patient information to be made available via FHIR, with more data segments to follow. Prior to this each vendor had a custom API, and getting integrations working was an enormous effort. There are a bunch of companies who offer a standardized API around various EHRs, such as Redox https://www.redoxengine.com/ https://www.redoxengine.com/. Now most of them have started supporting FHIR, as a way to ingest and expose data. FHIR isn't comprehensive yet, but it'll get there at its own pace. 1: https://www.cms.gov/Regulations-and-Guidance/Guidance/Interoperability/index https://www.cms.gov/Regulations-and-Guidance/Guidance/Intero...