St. Mary Hospital

On the November 27 2019 I got in to Emergencyroom with miscarriage, I find out these later when I got treated and did Ultrasound. I paid my out of pocket money because I didn't have insurance then and I paid $475 in ER. I did blood test and everything, ultrasound and etc. Nurse is the one who came and saw me but I got bill from the doctor that I never seen. Nurses got all info from the doctor on duty. I got bill for the doctor $1.094.00 when I asked what is these bill about they say in the hospital line that these is for the doctor. I said that I didn't see any doctor who will be seeing me. But they say that they asked him for the blood tests and ultrasound to perform. So doctor never came to me and never touched me for what do I need to pay $1.094.00 for? I heard that when you see doctor in the practice you pay about $450 for to see the doctor but in the hospital they hired him so they should be paying the doctor for his work at their hospital not me.