Your statement is equally a "crankery" if you've never had to deal with or experience the healthcare system. Unless you educate yourself on a topic to try to understand what's going on with yourself (unless it's something very simple), then you'll likely have as good of odds deciding if a doctor is good at what they do/figuring something out, as does a "health" startup. The systems of indoctrination are real and human error is a huge problem, likewise, doctors are selected primarily for their memorization skills and not critical thinking. - so if it is something more than simple, - good luck. They will listen to you for symptoms (assuming your self-awareness is adequate to notice everything important and your ability to share those symptoms is adequate) to then match up what might be going on, and then send you for testing, further specialist opinion, or whatever else. Technology will replace most of the processes in health - and that is good. Another example is using AI to analyze x-rays and MRIs for issues. Your family physician will depend on the report to decide if there's anything that needs to be treated - I have had more than one MRI reports where on second look by a different doctor they spot something that the original didn't.