In 2002 I had the satisfying experience of reading a front page story about my leading rival hotel doctor. The California Medical Board had lifted his license, and he was in serious trouble for providing narcotics to more than one celebrity. You can google it.
Most drug abusers must take to the streets and run risks, but a few are rich enough to pay a doctor to make housecall to give a single shot of whatever they prefer. A doctor for luxury hotels gets such request regularly (“My back went out, and I have a meeting I can’t miss...”). If a doctor is quick with the needle, the word gets out. Calls pour in. Money pours in. Most likely the doctor realizes he can charge a good deal more for this service and related services. Stupidity takes over.
Eventually, prescriptions labeled with this doctor’s name are sitting in medicine cabinets, purses, and glove compartments throughout the city. Their owners are fairly careless. This doctor is doomed.