OpenEMR is an open source medical practice management application (EHR EMR PMS)
https://sourceforge.net/projects/openemr/files/latest/downloadAbout OpenEMR
OpenEMR is a Free and Open Source electronic health records and medical practice management application that can run on Windows, Linux, Mac OS X, and many other platforms. OpenEMR is ONC Complete Ambulatory EHR certified and is one of the most popular open source electronic medical records in use today. OpenEMR is supported by a strong community of volunteers and professionals all with the common goal of making OpenEMR a superior alternative to its proprietary counterparts. The OpenEMR community is dedicated to guarding OpenEMR's status as a free, open source software solution for medical practices and is dedicated to maintaining a spirit of openness, kindness and cooperation.
OpenEMR Features
Free
Certified
Patient Demographics
Patient Scheduling
Electronic Medical Records
Prescriptions
Medical Billing
Clinical Decision Rules
Patient Portal
Reports
Multilanguage Support
Security
Free Support
Vibrant Community
http://open-emr.org/
https://sourceforge.net/projects/openemr/