But, how many in one year do you consider a reasonable number?
He tried to get the CAT scan that my past ENT doctor had done for me in 2008, but the past doc's receptionist refused to mail it to him. When he tried to schedule a scan with a nearby hospital, I got really worried about the amount radiation exposure. I told him that the ER had already taken x-rays of my sinuses close to my ears last week. So, he said that those should be enough.
When I received the previous scan myself in the mail and read the doc's notes, I realized that the scan had given him info about the characteristics of the mucus and the structure of the four sinuses. So, I tried to give the past scan to his receptionist, but she refused them even though the doc himself had said that if I could get the past scan, it would be useful for him.