It was more than 6 months from when I told them my health history and insurance information before I received an appointments. Dr bloomingstien was told when I met with him. Also recieved a phone call 2 days before the procedure from the hospital. Their instructions about medications differed from the instructions on the papers given by the Dr's office. I called the Dr's office that day and did not receive a call back until the afternoon of the next day which was after when I had to take my morning meds. I had followed the instructions on the papers which were differentthan what i was told by the hospital. Consistency between both facilities would have been less stressful.  
Illinois Gastroenterology Group LLC CHMCPHO