[epmatsw]

Eh, Epic and Cerner interface fine, and offer HL7 interfaces, and Epic in particular bends over backwards to do what their customers want for implementations. My impression was that hospitals are (understandably) reluctant to allow their direct competitors direct access to information they've collected.

[psaintla]

I wouldn't go that far with Epic. They always have some unadvertised module they try to push on hospitals the minute they want to interface with a third party.