President-elect Donald Trump’s announcement late Tuesday that he would appoint Dr. Mehmet Oz as administrator of the Centers for Medicare and Medicaid Services puts a man best known for hosting a television talk show into what might be the most important job in the U.

"Not since the Wizard of Oz himself has there been a bigger fraud than this guy," said Brad Woodhouse, executive director of Protect Our Care, a Washington-based nonprofit focused on expanding access to quality healthcare,