Healthcare Systems

The client operates 14 hospitals and 40+ ambulatory sites across three jurisdictions, on a heterogeneous EHR estate accumulated through a decade of acquisitions. Clinical data lived in silos; HL7 v2 messages were brokered through ageing middleware; and audit response required weeks of manual collation. The board mandated a single, regulator-defensible clinical platform — without a multi-year EHR rip-and-replace.

We engineered a unified clinical data plane around FHIR R4 as the canonical model, ingesting HL7 v2 from incumbent EHRs through a Mirth Connect mesh, and replicating to a Kafka-backed event spine. Patient-identity federation was rebuilt around an enterprise master patient index; PHI access controls were re-engineered against attribute-based policy; and every state mutation was streamed into an immutable, HSM-sealed audit lake. The platform was rolled out site-by-site over 11 months, with zero scheduled clinical downtime.

The platform now serves clinical workflows across the full network on a measured 99.99% SLA, with audit packages generated on demand from a single evidentiary surface. Regulator inspections that previously consumed weeks of staff effort now resolve in hours. Two further sites have been integrated post-go-live without architectural change — the platform was engineered for it.