This is why Dr. Kevin O’Connor ... and medical director of Doctor Radio at NYU Langone Medical Center. He is Fox News Channel's senior medical analyst and author of "COVID: The Politics of ...

Former President Joe Biden's advanced prostate cancer diagnosis has left Fox News senior medical analyst Dr. Marc Siegel "absolutely shocked" by the timing. "It has to get really pretty far ...

He is Fox News Channel's senior medical analyst and author of "COVID: The Politics of Fear and the Power of Science." Follow him on Twitter @drmarcsiegel.