Mehmet Öz

Mehmet Cengiz Öz, known professionally as Dr. Oz, is a Turkish-American television personality, cardiothoracic surgeon, Columbia University professor, pseudoscience promoter, journalist, and author. In 2003, Oprah Winfrey was the first guest on the Discovery Channel series Second Opinion with Dr. Oz, and, from 2004, Oz was a regular guest on The Oprah Winfrey Show, making more than sixty appearances. In 2009, The Dr. Oz Show, a daily television program focusing on medical issues and personal health, was launched by Winfrey's Harpo Productions and Sony Pictures Television.