There is good healthcare in many countries around the world, as I suspect Dr. Bill may attest.
What I know about is my wife's field where the endoscopes are Japanese, the treatment machinery is Japanese or German, and the big names are Belgian and English and Canadian and American and from several other countries. Venitlators are manufactured in various countries in Europe and the US, and specialists in ICU medicine come from many countries. The US made an enormous contribution to Trauma Medicine, partly as a result of the Viet Nam War, and partly as a result of the funding that US companies were willing to make available.
Canada pioneered heart pacemakers in the 1940's (post war), the Hospital for Sick Children in Toronto invented Pablum, and pioneered "Blue Baby" surgery along with New Zealand, and then the United States. I have tried to find a decent link about this specific issue, but it is not available on the internet. The reason I believe that HSC and New Zealand were early in the running is that there are framed medical journal articles that pre-date any of the information I can find regarding American research.
Before Canada adopted universal Health Care, Sick Kids as it is called was run rather like (damn, what's that Hospital that Danny Thomas did so much work for). They accepted everybody. They still get patients from all over the world, and do Siamese twin separations and haemangioma reductions via The Herbie Fund a Canadian charity which enables patients to be brought to Canada with their families to receive treatment.
I did a lot of research when we moved here, before the internet era, to see what sort of system I was getting into both as a potential patient and as an employer, and I found out there was a lot of interesting stuff here. Toronto General Hospital (as it was then) had quite an interesting display, in a very obscure place in the hospital with prototype pacemakers and a whole time line of medical articles.
Rob