completely agree. there are doctors who were bottom of the class or who are not updated with the latest research.
We had a doctor that had prescribed us a dangerous amount of medicine (we didn't know) without running any tests. The doctor was also doing procedures he didn't need to do and ultimately recommended a surgery that has been stopped since the 90s.
We caught him because of the surgery. We sought a second opinion about it because the google was telling me "This surgery is no longer performed because it has serious negative consequences, and it rarely treats the symptom it's done for". I even double checked with the quack that it's the surgery he wanted to do because I was a bit flabbergasted he was suggested it (he was, of course, annoyed that I looked it up).
We sought a second opinion and I've never seen a doctor angrier. First, he was livid that the doc had us on such a mega dose of the drug and wasn't doing bloodwork to confirm we even needed it. But also, he was furious the doctor wanted to do the surgery. I'm 90% sure he got the docs' license pulled because the quack sent out a sad "Sorry to inform everyone but we'll be closing up shop".
Needless to say, always always look up the procedures and medications doctors want. Second opinions are also a good thing and good doctors will respond with "The more the merrier". And don't be like us, you should be thinking at all times "what test did the doctor do to determine we should be doing X". If a doctor is freeballing shit, you should be leery. Except maybe if they are throwing Tylenol at you for pain. [1]