This is purely anecdotal but my wife worked with a woman who's husband was a surgeon, in the Navy, who worked at the Portsmouth VA Hospital, I think it's Called a Naval Medical Center now, but she said that according to her husband half the Dr's at the hospital were some of the finest most caring physicians and surgeons he's ever known and about half were pond scum who shouldn't be allowed anywhere near our Vets and service members and their families.
I heard the same...
I had some fine doctors in my many years on active duty in the military medical system. Some of them weren’t.
In our town, I wouldn’t go to about half of the doctors.
As ‘Dear Abby’ said once in one of her columns, “half the doctors graduated in the bottom half of their class.”