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Avalon Synthetic clinical data pipeline — generate realistic FHIR R4 patient data, normalize it through Forge, and query it as OMOP CDM 5.4 views.

What is Avalon? Avalon is an end-to-end pipeline that turns Synthea-generated FHIR bundles into clean, documented, queryable tables in BigQuery — then layers OMOP CDM 5.4 views on top.

The output is published free on BigQuery Analytics Hub, where anyone with a GCP account can subscribe and query it directly.

Why? Researchers need realistic clinical data in standard formats (OMOP) without PHI concerns Engineers need FHIR data to build and test healthcare integrations Analysts need pre-normalized tables with documented schemas, not raw nested JSON

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Show HN: Avalon - Synthetic FHIR R4 patient data as OMOP CDM 5.4 views