While doctors are not always right (especially if they don't keep up with their reading!), are you saying that you would rather entrust your care to someone who has demonstrated to me on numerous occasions that he does not understand how to properly interpret the lab tests he makes a regular practice of "interpreting"?
... And that is just the tip of the iceberg. But hey, if you'd rather put your health in the hands of someone who knows just enough to sound knowledgeable to a layman, be my guest.
Sure, keep an open mind, read about things and ask questions rather than accept things blindly. Questioning things is good. But if you're going to be the kind of skeptic that questions everything your doctor tells you, but never questions what some random guy on the internet says... Well, all I can say is thank God for natural selection.