What Are Dr. Oz's Credentials?

Dr. Oz has an undergraduate degree from Harvard, an MBA from the Wharton School and an MD from the University of Pennsylvania School of Medicine. He is the director of cardiac surgery at Columbia University.

Dr. Oz gained popularity as a health expert on "The Oprah Winfrey Show." He has made numerous appearances on "Good Morning America" and guest hosted "The Charlie Rose Show." He also served as the medical director for the movie "John Q."

Dr. Oz is the author of five New York Times best-sellers, and he has a regular column in Esquire magazine. In 2008, he was honored as one of Time Magazine's 100 Most Influential People and received the Ellis Island Medal of Honor. He won the prestigious Gross Research Scholarship, and has received an honorary doctorate from Istanbul University.