Secondly to confirm that you are not taking any form of
street drug, or any other medication prescribed by another physician that may be a pain medication or a muscle relaxer, tranquilizer, etc...unless you have already discussed those meds with your prescribing PM.
Most PM's clinics/doctor's have a contract, although like you, I do not have one either, but I also know that I am subject to unannounced drug screens at any point.
I don't have a problem with that.