Not much I suspect. Do that with a Medicare patient and you fall under the False Claims Act: a civil war era law that punishes people who overcharge (i.e. defraud) the government. It encourages whistleblowers to turn in their companies/bosses, because the whistleblower gets a cut of the recovery. I saw a doctor get fined $800k, plus had to pay back all the profits, for ordering nonFDA approved chemo medicines from Canada to give to his patients. I'm sure someone in his office turned him in.