Also known as 100M people who may have died without medical care, but were provided it despite their inability to pay for it. If you remove the ability for medical workers to seek payment for their services, most medical workers are just gonna say fuck it and not work for free. Medical care providers have families they have to feed too.
The alternative isn't denying care. It is providing the same care without having people get into debt, which every other developed country (and a lot of undeveloped countries) in the world manages to do.
Where doctors also make much more modest salaries