These numbers for doctors fit in well with the other numbers I posted earlier, fitting between the average for ordinary scientists and all Americans together, and, in particular, closer to the numbers for average Americans.
The medical schools I'm familiar with do not require medical school applicants to have an undergraduate degree in biology. While many do major in biology, many have majored in history or literature or sometimes chemistry.
In medical school it would be quite unusual for students to be exposed to much in the way of evolution or natural history.
Darwin in medical school - Stanford Medicine Magazine - Stanford University School of Medicine
The emphasis is on human anatomy, physiology and pharmacology. If you took a comparative approach to learn these topics in the context of how things work in other animals as well as humans, you would learn a lot about evolution, but the majority of doctors are not exposed to that. They have to memorize what to do if a patient comes in with a certain set of symptoms, how to calculate dosages, and so on. The most important thing is to prevent an imminent death. Everything else can wait.
Most doctors are highly educated technicians and have no reason to think like scientists. It's not what they do day to day and it's not how they were trained. This is not a fault. It's just not what they do.
So it sounds about right that they would be only a bit different from the general population.
I am of course not talking about the few MD/PhDs or MDs involved in quality research programs.