My FIL is a doctor, and I've known about his righ-leaning tendencies since before I got married (my wife does not have a close relationship with her parents, but we're pretty friendly to eachother in general)

I've suspected that my FIL was going down the Q rabbit hole for some time with some of his arguments that he's brought up. Nothing major like election fraud or the vacciene is poison, but small things like COVID deaths are being falsely reported, or face masks not being effective (I did get him to admit that a homemade face mask was better than nothing on that one, so small victories I guess)

But this Christmas, on his living room table where he usually stashes all the war novels he's currently reading, I see 6 different Q books, most about how Fauci is some kind of nefarious agent trying to push the vacciene for profit.

I don't know if he bought them, or was gifted them, but I know how stubborn he can be, to the point of seeking out information that proves his ideas, but cherry-picking it so as to leave out all evidence against his side of thinking.

I'm honestly worried that he may be tainting his view of how he prescribes medicine to his patients due to the media he's consuming, and would like to inform the hospital, however, I don't want to ruin what little relationship my wife still has with her family. If it comes down to it, she will take my side. She's threatened cutting them out of her life before, but I don't want to make her do that because of something I did rather than a decision she makes on her own.

Is there any way to inform a hospital anonymously about my FIL's activities? And as for proof, I have nothing besides pictures of his books on his table and a history of listening to his way of thinking. This is more of a wellness check than an accusation, but I'm still concerned about his patients.