As reported based on a N.Y. Times/KFF survey:
A majority of Americans with health insurance said they had encountered obstacles to coverage, including denied medical care, higher bills and a dearth of doctors in their plans…
About 40 percent of those surveyed said they had delayed or gone without care in the last year because of the expense. People in fair or poor health were more than twice as likely to report problems with paying medical bills than those in better health, and Black adults were more likely than white adults to indicate they had trouble.
A summary of some of the issues patients face is summarized in the figure below.
The full article is here.