Test patients for Epic healthcare systems

Hi all,
We are trying to build a test automation for pulling data from OpenEpic, their test sandbox is not stable.
We’ve heard that some providers has their own test patients.
Does anybody know how to get that list? Or what healthcare systems offers that capability?
Thanks!

Hi Ohadzad,
Epic and Cerner both offer test environments, but as you said stability is sometimes an issue. For synthetic patient data you can use http://hapi.fhir.org, or you can run a complete stack with synthetic patients using GitHub - smart-on-fhir/smart-dev-sandbox: Docker based sandbox for smart apps.
Tim