I resent it too, immensely. And no, the government requires them to do this and they don't have to give us any warning as to what visit it's done.
Without getting into the political side of things, this is just another area when the government is in essence punishing those of us who keep the law. On this topic, IF the government had been the watchdog over us that it was supposed to be over the pain clinics, there would not have been a mess. Of course those who were shady created "pain centers" and connected with "insurance" fraud cons and dispensed at will...no real oversight. So to stop them, the government took over the pain clinics...errr .... closing most of them and even forcing good, caring, LICENSED medical doctors to stop prescribing because of all the hoops/red tape and transfer all their pain patients over to a few places... which are supposedly highly watched by said government. Meanwhile the meds are sold illicitly on the streets by the shady people.
And we have to succumb to long waits in crowded waiting rooms like cattle and submit to drug testing. Go figure.