Why did my doctor have me do a sleep study and not follow up with it?

I did a sleep study for my doctor because he thought I had sleep apnea. Well I did it, and the sleep apnea doctor called me back the same night after I did it, and told me I had Mild sleep apnea, but his concern was with my low oxygen levels. He said he wanted me to stay at my house and sleep with a cpap machine and check my oxygen levels for a night, and he said my doctor would call me back or the company that does the equipment, well low and behold noone calls me for over a month, so I called the office and they said they hadn't received the results yet. So anyway I had to take my daughter to the same doctor today and while I was there I asked him if he received the results yet, and he told me to ask the office girls? (what a doctor) so I go out there and ask the office workers if they received them, well low and behold they had received them the day after I had it done, and the doctor I guess just doesn't look at his patients info when it is faxed in. I guess the dumb office workers just glance at it and file. So anyways they gave me a copy of this fax and the sleep doctor has all this stuff he suggests that my doctor do like have done what he told me with the cpap machine, and also maybe look into surgury, and he suggested a pulmonary and cardiac evaluation since I'm only 30. I don't understand why my doctor just doesn't do anything about this, The sleep doctor said on this report my lowest saturation of sleep oxygen was reduced to 63.1%. I think that is pretty bad. I have trouble breathing when I try to go to sleep without taking something to sleep, because when I take something I don't have to think about it, I just get zonked out. What should I do? I want to defiantly change doctors, but can he get in trouble for this, or since this doctor just suggested it would it not matter. I feel so uncared for at this doctors office, why have me do a sleep study and not even look at my results. Someone please give me info and advice I need so badly. If I change doctors and give them these results will the insurance still go by them and let my new doctor help me?