PatientOS is an free Open Source (GPL v3) EMR developed for organizations to customize in physician offices and other clinical settings.
PatientOS version 0.70 adds the ability to add manual charges. Over two dozen spreadsheets to configure the system are now available here. A new prescription wizard introduces the first example of workflow using a plugin. The first personalized patient list is now available.
Numerous bug fixes for scheduling and patient chart functions.
Video of the new features (8MB) available here.
thanks
Greg
http://www.patientos.org