ARC MyChart downtime: Due to technical maintenance, ARC MyChart will be unavailable 7:00pm Saturday, February 15 to 7:00am Sunday, February 16. To schedule a Family Medicine, Internal Medicine, or Pediatric appointment during this time, please call 512-272-4636 and press "1". You can reach all-night phone nurses by calling any clinic and pressing “4” to speak with a nurse.