I had an appointment for a mammogram at 10:20 & arrived as instructed 15 min early to check in. I waited in the waiting area for 45 min without being called. I went back to the registration desk to ask if the mammography dept was backed up & was told they would be calling me shortly. Within 5 minutes, I was taken back for the mammogram. The U/S tech was very kind, efficient & apologetic. I was never "arrived" in Epic & that's why I was never called back. 
GSA SMA