For those trying to look for Degroot. He is now practicing at MyDrNow, http://mydrnow.com/, out of the Laveen location. Their number is 480-677-8282. I just called a few minutes ago (11/24/2014) to request my medical file and they said I just need to fill out a medical release form. But the receptionist did verify that he is working for that practice. Hope this helps.