The 7 Deadly Sins

The Medical Board of California lists the seven deadly sins that can cost a doctor his license.
Often its possible to committ more than 1 sin at a time:
Each Medical Board investigator probably can recount three or four outrageous cases of sexual misconduct that they have investigated. For me, one was a renowned psychiatrist who had a seven-year affair with a schizophrenic patient. Their sexual relationship began in the library of a university medical school. Their relationship culminated with the psychiatrist using the patient to procure prostitutes with whom he, and the patient, would have group sex. Instead of paying money for the prostitutes' services, he bartered by providing them with prescriptions for Klonopin or other controlled substances. Not to be limited to a mere one or two violations of law, he would then bill Medi-Cal for group therapy (definitely one of the more creative liberties I've seen taken with a CPT code). This physician's license was revoked and he was also criminally convicted of fraud. Lust and Greed.
Not everyone agrees that Greed is bad:
"The point is, ladies and gentlemen," Gordon Gekko pontificated in the movie "Wall Street," "that greed - for lack of a better word - is good. Greed is right. Greed works. Greed clarifies, cuts through, and captures the essence of the evolutionary spirit. Greed, in all of its forms - greed for life, for money, for love, knowledge - has marked the upward surge of mankind."

In my opinion, Pride is probably the most common deadly sin among physicians:
There are a lot of doctors out there who are brilliant practitioners, but they have no business acumen. Being too proud to admit it, they are lured into contracts and obligations due to their business naiveté and end up being cited for all kinds of violations (failing to have a fictitious name permit, aiding/abetting the unlicensed practice of corporate medicine, advertising violations). I hate to be the bearer of bad news, but ignorance is never a valid defense.

Pride is also known as Vanity:
Vanity, definitely my favorite sin.

For those of you who don't watch movies much, that last quote is from The Devil's Advocate- A great performance by Al Pacino.