Abstract: Systems and methods for managing appointments and, particularly, for managing appointments for patients in healthcare systems that include health care facilities and hospitals. Computer systems can detect geophysical positions of patient devices, such as their smart phones to update likelihood of patients being able to make appointment dates on time during the date of the appointments The computer systems can detect the patients travel locations before the appointment at one or more geo-fences associated with the location of the appointment for determining whether the geographical position is inside or outside the geo-fence to determine likelihood of patient making their appointment ontime, and if time permits registering the patient during their travels to the appointment, and/or sending reminders to the patient of the scheduled appointment time, or determining if the appointment needs to be rescheduled.