I'm not so sure about that.  As soon as it was decided (both by himself and the social media public at large) that it matters that "he's a doctor with patients to attend" then his history **as a doctor** became relevant.  For those that aren't aware, a brief/incomplete list:

Charged with almost 100 felony counts of drug trafficking to dozens of patients.  
Convicted of 6 counts of Fraud relating to obtaining illegal amounts of opiods (oxy) and was prevented from practicing for 10 years.  
Exchanged pills for money (his defence was apparently "I didn't accept cash, I reduced a debt")
Also exchanged sex for pills (though he was caught with a man, that part is likely moot)

And in the proceedings against him, several colleagues described him as a difficult, belligerent person who felt he was above the rules.  This last part could be anecdotal but it is part of the court record and IMO is relevant.  Sounds like the guy lived the stereotype of "arrogant aloof 'but I'm a doctor'" doctor.