GNU Health - GNU Health is a Free/Libre project for health practitioners, health institutions and governments.
Availity - Health Plans, Revenue Cycle Solutions, Healthcare Claims Clearinghouse - Availity
OpenEMR - OpenEMR is an open source electronic health records and medical practice management solution.
drchrono - An EHR built for your specialty:
OpenMRS - OpenMRS is a community-developed, open source, enterprise electronic medical record system platform.
SkillSurvey Credential OnDemand - Credential OnDemand automates candidate referencing and privileging