I do think it helps to know more than just the generic "doctor" title.
I would not want to be operated on by someone with a PhD in philosophy.
I agree. A resident in hospitals, a GP in surgeries, and then psychiatrist, cardiologist etc. I am pleased that they are no longer being called junior doctors.
Early reading v continental custom - teachers’ thoughts sought
Using equity release to buy partner out of home

Looking back on the way his entire team looked after us both I would have felt it was very insulting to refer to any of them as Juniors.