mock.health is a synthetic EHR sandbox driven by a Markov progression module trained on millions of real patient journeys, served through HAPI FHIR R4 with a full SMART on FHIR authorization server. On top, a mutate-on-read layer turns one canonical patient set into Epic, Cerner, and Meditech personalities at the wire. Custom cohorts by morning.
Every health-tech team hits the same wall: the demo says TEST TEST, the Epic sandbox has eight patients, and the integration test suite is 400 lines of hand-crafted fixtures. Everyone rebuilds the test-data pipeline. Everyone waits months for EHR access. Everyone ships shallow.
A Markov progression model trained on millions of de-identified patient journeys, served through a HAPI FHIR R4 instance with a full SMART on FHIR authorization server. It's the stack you'd build yourself if you had six months — or the patience to work through MEPS, MIMIC, and CMS BCDA surveys. On top, it's an API key and patients that don't embarrass you.
Your demo is your company's face. You cannot close a health system deal on fixture data that says TEST TEST. Standards are the only way. FHIR conformance is required — see the conformance heatmap. Your cohort isn't in the catalog. When you need Neuro ICU patients with Glasgow Coma Scale scores and TCD velocities, you shouldn't wait on a product roadmap. Overnight, not quarters. Request a custom cohort.
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