He doesn’t take insurance so he’s extremely expensive. So, you want to do the pre-payment plan because you think it’s the better deal. DONOT enter into a pre-payment plan with Dr. Sorum and Advance Spinal Rehab Center. Although, he offers a refund and expects you to pay everything upfront when you agreement to the payment plan. Watch out when you request a refund. You might get part of it back but not all of it. I requested one back in Sept 2014. It’s now May 2015 and he still owes me.