Top U.S. Electronic Health Largest U.S. Health Systems Record (EHR) Vendors and Chosen EHR Platform RANK VENDOR % OF MARKET HEALTH NETWORK # OF HOSPITALS CHOSEN EHR 1 Epic Systems Corporation (MyChart) 37% HCA Healthcare 182 Commure PatientKeeper Veterans Health Administration 171 VistA to Oracle Cerner to 2 Oracle Cerner 23% VistA 3 MEDITECH 15% Encompass Health 143 Oracle Cerner 4 Evident 8% Ascension Health 143 Oracle Cerner CommonSpirit Health 140 Epic MyChart 5 MEDHOST 5% Select Medical Corporation 134 Epic MyChart 6 Altera Digital Health 4% Trinity Health 92 Epic MyChart 7 Netsmart Technology 3% Community Health Services 79 Oracle Cerner 8 Proprietary So昀琀ware 2% Scion Health 79 ProTouch/NetSmart & 9 Aetna Health 2% (LifePoint, Cornerstone, Kindred) PinPoint Advocate Health 67 Cerner to Epic MyChart 10 Allscripts 1% Tenet Healthcare 61 Oracle Cerner Christus Health 60 Epic MyChart Providence Health & Services 52 Epic MyChart