Medical bill question

If they're doing some sort of pass through billing, contact your doctor's office to help out with this. I"m a bit confused if your doctor took your blood and sent it to the clinic, or if you went to the clinic. If you went to the clinic, odd that it would be a pass through bill.. meaning, the lab charges the doctor, the doctor charges you and gets a little profit... it should have just been a regular bill.

I'm having similar fun... our 16 yr old got billed as an adult for blood work, so it was denied. But, getting the right person to fix it.. that's the rub.

Pass-Through Billing Generally Not Permitted
The doctor works for Rush Medical Group at a clinic owned by Rush Medical Group. When you give blood for lab work, you go down the hallway to the “lab”. A technician draws the blood and I think they send that to the lab in Meridian. I believe all work is done entirely by Rush employees at Rush owned facilities. The issue is that billing shows that the lab work is done by the doctor.
Two separate lines on the bill but both read the same.