Heck they do...
https://www.globalasia.org/v16no3/cover/north-koreas-surprisingly-robust-healthcare-system_kee-b-parkedward-i-ham
One cannot be surprised DPR Korea has got a strong healthcare system unless one assumes that there's no reason communists would prioritise the welfare of the people, and that DPR Korea is in such a state people are always starving or whatever.
Oh look, both tropes are there...