Ben Carson made massive real estate profits from ties with convicted felon who defrauded insurance companies while he was a dentist Carson and his wife reap a windfall of between $200,000 and $2 million annually from investing with Alfonso Costa, a disgraced former dentist Costa pleaded guilty to health care fraud in 2008 for phony billings in his oral surgery practice, and Carson helped him win a sentence with no jail time Carson's 2013 book lays out a more draconian punishment for people convicted of defrauding the government through medical billings He recommended 'loss of one's medical license for life,...