I would assume it’s the DEA, but I don’t know for sure. In late 2015 I visited a Pain management Dr. who was referred by my UCLA Primary Doc. During the course of my final visit he told me that starting on January 1,2016 there was a telephone # he could call that would provide him with my recent history of filing Schedule 2 Rx’s. I assume it would tell him the date and the doctor who prescribed it . It would tell him if I was visiting different doctors and asking for the same medication.( Dr. Shopping) I assume they could make assumptions based on that data If I was a Drug Addict ….Drug Seller or engaged in some other illegal activities regarding controlled drugs.
If the data was so compelling, I assume they would talk to the Dr’s and finally to me about what I was doing and Why.