Of course there is not a shared level regulation among all the states. But generally speaking, the healthcare industry is a highly regulated system, which means higher costs.
Obviously, it’s possible there is too much regulation and resources are not allocated properly, but on its face, I would expect something as complicated and risky as operating on people’s brains and chemotherapy and transplants to be expensive.
It’s not all brain surgery and organ replacement.
https://www.cdc.gov/media/releases/2016/p0503-unnecessary-pr...
https://www.medscape.com/viewarticle/820736
https://www.cidrap.umn.edu/asp/overuse-overprescribing-of-an...
“Minor, common health issues” is probably a better choice of words.