Marc K. Siegel MD

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Dr. Siegel portraitMarc Siegel, MD is a practicing internist boarded in Internal Medicine who joined FOX News Channel as a medical contributor in 2008. In addition to his role as a commentator with Fox News, Dr. Siegel also works as a medical reporter for the network.

Dr. Siegel is a clinical professor of medicine at the NYU Langone Medical Center and the Medical Director of Doctor Radio with NYU Langone on Sirius-XM Satellite Radio. Siegel was a co-creator of Doctor Radio.

Siegel is a regular columnist for several newspapers and magazines including the New York Post, NY Daily News, National Review, the WSJ, Slate, and Foxnews.com. He is a member of the board of contributors for USA Today and authored a column for the LA Times for several years called "The Unreal World." Dr. Siegel blogs for Forbes.com.

For the past 3 years, Dr. Siegel has co-hosted Sunday Housecall on Fox News.

Siegel is the author of False Alarm; the Truth About the Epidemic of Fear, and the Inner Pulse; Unlocking the Secret Code of Sickness and Health as well as several other books on influenza and contagions and a medical thriller entitled Bellevue.