How long ago was this? Ever since war on opioids started, doctors have been extremely closely scrutinized by the DEA. Actually helping and even treating patients in some cases is a good way to risk losing your license and livelihood, and possibly your freedom. (and the War on Opioids didn't just apply to opioids, it caused a massive pendulum swing that affects all "controlled substances" not just pain pills, hence why it would be relevant here)