Mehmet Cengiz Öz, known professionally as Dr. Oz, is a Turkish American television personality, cardiothoracic surgeon, Columbia University professor, pseudoscience promoter, and author. Oprah Winfrey was the first guest on the Discovery Channel series, Second Opinion with Dr. Oz in 2003.
Mehmet Cengiz Öz, known professionally as Dr. Oz, is a Turkish American television personality, cardiothoracic surgeon, Columbia University professor, pseudoscience promoter, and author. Oprah Winfrey was the first guest on the Discovery Channel series, Second Opinion with Dr. Oz in 2003.