PatientKeeper, Inc. provides healthcare software applications for clinical and financial workflows to physicians. Its clinical solutions include Computerized Physician Order Entry (CPOE), which allows physicians to enter orders for lab tests, diagnostic images, meds, and other services; Mobile CPOE that extends physicians' access to electronic ordering to their mobile devices; Medication Reconciliation, which allows physicians to view a medication list and allergies for their patients; NoteWriter that replaces paper and transcription with electronic notes; and Mobile Clinical Results, which delivers a single view of all patient information to physicians on mobile devices. It was formerly known as Virtual Medical Systems, Inc. and changed its name to PatientKeeper, Inc. in January 2001. The company was founded in 1996 and is based in Waltham, Massachusetts with a regional office in Chicago, Illinois. As of November 1, 2014, PatientKeeper, Inc. operates as a subsidiary of HCA Holdings, Inc.