Oz began his turn on 22 March and is scheduled to remain as guest host until 2 April.
Mehmet Oz, a cardiothoracic surgeon and professor at Columbia University, has long faced criticism for the advice shared on his daytime talk show, The Dr Oz Show.
A group of “concerned” former Jeopardy! contestants also condemned the decision to include Oz in the pool of guest hosts in an open letter shared in February.
The Dr Oz Show has been on the air since 2009 on syndication.