Oz was a professor at the columbia university medical school until like 2015 and he was by all accounts an incredible cardiac surgeon before swerving into being a professional crackpot. He's still a crackpot though, and for quite a long time was both a crackpot and a professor at a prestigious medical school.
I'm not sure how "was a professor at Columbia" is supposed to be a rebuttal, and "crackpot" is just a slur. He's currently a professor at Johns Hopkins, and in fact, right now has a book at #10 on the New York Times best seller list [1]. He's a completely mainstream doctor who happens to (I assume) disagree with you about something.
I was talking about Mehmet Öz. I was pointing out that affiliation with a mainstream medical institution appears to be compatible with crackpot beliefs. I don't know anything or have an opinion about Makary but Öz is a crackpot. Crackpot is a slur and I am using it intentionally.
