Drug Pushing Robo Callers and the Opioid Crisis

I am getting a phone call every other day now.  It's a robocaller who starts out asking if I am feeling any pain, and goes on to point me toward a pain clinic that will prescribe any kind of happy pill I might want.  I wonder how many opioid addicts get started by such drug pushing robocallers.  For that matter how many opioid addicts get started at those pain clinics, like the one that opened up here in Littleton a year or so ago?  Anyone have any numbers on this?