Go to the ATI testing site to sign up & pay through them. I can't post a direct link but if you go to www.atitesting.com on the main page to the right is a link to "Register for TEAS" Then you put in your state, and city. Right now the only testing dates for GCU are showing up in Tuscon, but someone at GCU said they put up new dates all the time. So either keep checking back (if Tuscon doesn't work for you) or call the nursing department and someone could probably tell you when the next Phoenix testing date is. Good luck!