I just stated my full name and any ID number they had given me and said that I had heard from them a month ago that my application was complete and that I wanted to check on my status.
But I was also e-mailing them to let them know that I accepted a new job as an occupational therapy aid and wanted to make sure that was included with my application for consideration. I heard back from Midwestern (IL) and the lady was super nice and helpful and she actually thanked me for my e-mail!