I am convinced that for 99% of doctor visits the quality of doctors is completely irrelevant. So long as they can fill out prescription forms and scold you for your blood pressure/weight/drinking/smoking, you're going to have the same experience.
I would be more concerned about surgeon quality, but that sort of thing is rarely needed.
As someone who had Kaiser Permanente coverage as a young adult, I don't agree with you. The doctors were incompetent, incapable of diagnosing why I was falling ill with the same symptoms every month. They gave outright bad advice on the subject of an ankle injury, which scared me off from doctors for years. In my experience, the difference between a good doctor and a bad doctor is enormous.
I would be more concerned about surgeon quality, but that sort of thing is rarely needed.