Anyone else go to Republic Spine and Pain?

I have been a patient for a long time but am really starting to question their billing tactics. My insurance doesnt cover all the cost of the 800.00 finite urine drug testing called Immunoassay, i am required to do every 2 months to stay on my pain med. They are also charging 100.00 that ny insurance covers most but not all cost of, to pee in a cup the day of my visit that is a drug screen urine test they prob pay 1.00 or less for and the medical assistant reviews while im there. I have never had any bad screens in all the years i have been there yet i am required to take the 800.00 Immunoassay urine test and same day result urine screen for 100.00 every two months. Is this normal for pain managment clinics? It feels very excessive and like a money grab.