Depends. If you’re a framer they just want to know if you have tools and when you can start. If you’re a lead it’s important to know stuff like how to square a foundation and calculate stair risers and hips/valleys, and you should be familiar with different hardware and where it goes. But nobody is going to ask you about which cracker-jack spec houses you built at your last job.

I guess I'd also point out that some doctors might be expected to give talks and publish findings etc.