Having changed doctors on a number of occasions since coming to Springfield, I do think it’s fine to shop around for the best doctor for you.
It’s your health at stake, not the doc’s health. You have to use common sense. If a doctor refuses to call you back for consultation, there is something wrong with that. If a doctor over-refers you for multiple testing, something is wrong there too. If you customarily sit in the waiting room for an hour, also wrong.
For us, now, I think we have the best doctors, and I continue to exercise my own common sense. It’s my body and ultimately my family’s welfare at stake.