Daniel Mark Porush is an American businessman and former stock broker who ran a "pump and dump" stock fraud scheme in the 1990s. In 1999, he was convicted of securities fraud and money laundering at the Stratton Oakmont brokerage, for which he served 39 months in prison. The character of Donnie Azoff, portrayed by Jonah Hill in the 2013 film The Wolf of Wall Street, was loosely based on Porush, although Porush described the portrayal as inaccurate. After prison, Porush became involved with a Florida-based medical supply company, Med-Care, which was the subject of federal investigations.