As a medical service provider company, we interface with hundreds of different EHR and EMR packages. Just about everyone has an API, ODBC Driver, or export function that allows the client to share or export their data for use in other applications.
Elite Software (http://elitesoftware.com/) does not allow any interfacing at all. I would not be able to recommend the of a software package that essentially holds it’s clients data hostage.
The reason we were given is that the CEO of the company considers the table layout to be proprietary information.