the way it works in michigan, and i would imagine in most states, is that any pharmacist, nurse practitioner, physicians assistant or physician can access the MAPS (the michigan) database if they are suspicious about anything.
when i was doing neurosurgical research, the surgeon i was working with had a pt that was in one of our studies that was asking for waaaay too many pain killers, oxy, vicodin, percs and even ambien. pick one, she asked for it. he ran her through the MAPS and found out she was hitting up 10 other docs for the same drugs. the state filed charges against her and took her kid. i saw the legal documents in her chart. the math added up to she was doing, or selling, 60 vicodin a day.
this is just an example of how close states track this shyt...