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Connecting clinical records, vendor systems and care teams through practical EHR and EMR integration.
An engineer’s map of the real access paths into an EHR: FHIR R4 and SMART on FHIR, HL7 v2 feeds, C-CDA documents, bulk export and network routes, then how Epic, Oracle Health and athenahealth actually hand out access, and which steps gate a project.
How an X12 837 professional or institutional claim is structured, how its loops and segments map to a FHIR R4 Claim, where ExplanationOfBenefit fits, and the pitfalls that break claim pipelines.
A playbook for CDS Hooks against Epic and Oracle Health (Cerner) — patient-view versus order-select versus order-sign, cards versus suggestions, prefetch, and de-identified fixtures.
A decision page for HealthTech teams integrating with Epic — patient-access SMART versus provider launch versus backend-services JWT, App Market versus a single health system, and KLAS share as cited market context.
Implement SMART App Launch 2.2.0 against Epic and other EHRs — EHR launch versus standalone, iss and aud, the launch token, PKCE S256, and why the Epic sandbox is not production.
How patient identity management actually works — deterministic vs probabilistic matching, IHE PIX/PDQ profiles, Global Patient ID reconciliation, and why getting MPI wrong is the most expensive mistake in healthcare IT.
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