Well, anyhow, you already do require skills-based assessment if you are seeing licensed physicians in the US. They don't let ppl practice with only book learning.
*because it really feels as if some companies translate leetcode skills to actual skills
medicine is way out of my field, so i don't have personal experience and can only go on what i have read, but i would guess that it is a lot like most other highly specialized fields: pre-med is a waste other than basic bio/chem, medical school is mostly information you will never use, residency is where you learn how to actually do the job, and then you get into a specialty and learn that specialty, and what you learn for your specialty is the only thing you really use.
For doctors, I'm perfectly comfortable requiring both and do not accept the replacement of a degree with a skills-based test.