There is no way to migrate from Cerner to Epic without leaving the hospital system, it is possible to make integrating Epic patient charts and lab results. You can import data from Cerner and then enter it into Epic, so there are no plans to stop scheduling, claims processing, etc. Before you integrate Epic EHR, it's important to understand that Epic data on the EHR system is password protected, so you'll need to take care of this on your side.