ClearHealth is an open-source practice management (PM) and electronic medical records (EMR/EHR/PHR) system available under the GNU General Public License.
In 2006, the Tides Foundation provided a grant which funded the development of a set of feature additions to support the specialized needs of Federally Qualified Health Centers (FQHC) and other CHC/RNC facilities.
Written in the PHP language and capable of running on most server configurations, Windows, Linux or macOS, under Apache and MySQL (LAMP).
As an open source reference implementation of several interoperability protocols, ClearHealth has support for working with data in HL7[4] and Continuity of Care Record (CCR) formats.
There are a number 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[6] and Operation Samahan,[7] a Federally Qualified Health Center (FQHC) look alike facility in National City, CA with 5 locations.