Integrations
EHR integration without a rip-and-replace
April 21, 2026 · 7 min read
FHIR, HL7 and the pragmatic middle path for connecting a modern patient app to a system of record you cannot change.
You are not replacing the EHR
The system of record stays. Your job is to build a patient-facing surface that reads and writes through the narrowest, best-documented interface the vendor exposes, and to degrade gracefully when it is unavailable.
The integration layer
A thin service owns every call to the EHR, normalizes FHIR and HL7 v2 into one internal model, and caches aggressively so a slow interface never becomes a slow app.
- One normalization layer, one place to debug
- Idempotent writes with a replay queue for outages
- Synthetic monitoring against a sandbox tenant so you see breakage before patients do
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