2018, I was on Medi-Cal (Medic-aid) and had a stress ECG, right heart catheterization, and 12-lead EKG when admitted to their cardiac unit for 3 days. Cost $0.
Like a third-world country: in America, you're better off being either totally penniless or a billionaire. If you don't have a balance sheet of $5 megabucks, your life will be miserable.
The advantage most European and other countries have under socialism is it means there's a minimum average quality of life everyone. Pay more in taxes but get a lot more in terms of a more dignified, healthier, and longer life free from the slavery of "gotcha!" gangster capitalism.