Webwhen you're approved, you will receive an email or a letter with your activation code and instructions on how to activate your mychart account. If you have any questions, please. • save time by checking in before you arrive at your appointment. • schedule, reschedule, or cancel appointments, no phone call required. Webget answers to your medical questions from the comfort of your own home. Please click here to learn how to register and use your. Enter your activation code as it appears on your enrollment letter or after visit summary®. Your code is not case sensitive.