Or so the socialist claims.
Or actually: so the national socialist claims. An international socialist would equally downrate the UK system for not providing care to, say, the Thai.
Calling unto -isms is not productive area of discussion. Like I said about education, the easiest thing to do is slap some label on someone or something and be done with it.
Regarding healthcare. Doctors don't collect checks, they don't issue bills. People working in health are paid by health insurance companies. Those dictate the type of treatments, duration, time per patient, etc... They require things like: we cover 7 minutes per patient.
Then there's the other side of insurance, the one that health industry needs to pay. Protection against malpractice and similar. So a doctor receives X from health and needs to spend Y for insurance. At 7 minutes per patient, they usually need to see ~60 people per day just to break even. So the next time your doctor overbooks you and then rushes you off with some generic medicine, don't blame them. If they spent more time, they won't make ends meet.
Enter pharma industry. How does doctor improve their situation? Well: "we would be very forthcoming if you were to recommend X for treatment of Y over Z".
This worked for a while. But then people got healthy. Better standard, better living conditions, regular treatments... And suddenly, Y became rare. Pharma looked at charts showing they will be out of business soon (which also means other kinds of medicine and related research would no longer exist).
If 20 years ago threshold for certain disease was 25, it was now lowered to 15. And suddenly, number of, say, diabetics, went from 1 in 5000 to 1 in 100 (fake numbers, but approximate ratios). 50 times more medicine sold. During last decade, these thresholds were systematically lowered to the point where certain harmless and normal conditions, which were never an issue became an epidemic, sometimes affecting 1/4 of population. General focus is non-life-threatening chronic conditions.
That is the alternative to "socialism". Under capitalism, healthy people aren't customers. And since it's illegal to make them ill, one simply changes the relevant metrics. It was said long ago: "US industry doesn't fulfill needs, it creates them". The concept has since become globalized and isn't US-specific anymore.
Oh, your health? Who cares. Unless you're ill, you're not a consumer. So contract a few chronic diseases, then we'll talk about life-long, $1000 per month treatments. Bring family, let them be ill too.