GNUmed is a group of practicing doctors, programmers and free software enthusiasts from around the world, committed to provide a superior, free software solution for community practice
The GNUmed project builds free, liberated open source Electronic Medical Record software to assist and improve longitudinal care. It is made available at no charge and is capable of running on GNU/Linux, Windows and Mac OS X. It is developed by a handful of medical doctors and programmers from all over the world. It can be useful to anyone documenting the health of patients including, but not limited to, doctors, physical therapists, occupational therapists ...
Using tried-and-true technology, GNUmed software will start out having record-keeping, but will eventually cover all aspects of medical practice, and will interface well with third-party software. Technically speaking, it tries to do things "cleanly", but takes a pragmatic rather than purist approach. Currently, GNUmed's data is accessed via business objects implemented in Python which provide and govern direct access to the PostgreSQL RDBMS, but GNUmed will also be able access various types of data stores such as other RDBMS or LDAP.
GNUmed cleanly separates the medical aspects (record keeping) from the administrative aspects (billing, storage) of a medical practice. Thereby it allows GNUmed to be internationalized to different jurisdictions.
Check out GNUmed here