Wikipedia
ClearHealth is an Open Source practice management (PM) and electronic medical records (EMR/EHR/PHR) system available under the GNU General Public License. It has received attention as a possible open source option for FQHC and CHC sites. It is currently deployed at approximately 600 sites worldwide including commercially supported and self-supported open source installations. There are number of high profile installations in non-profit health settings including the Primary Care Coalition network, powering the Community Healthlink System, in Maryland, USA, which includes approximately 50 sites and 1,500 users and Operation Samahan, a Federally Qualified Health Center (FQHC-Look alike)look alike facility in National City, CA with 5 locations. OsNews provides an introduction to the system.