As a new Canadian resident (temp for now) I can confirm this is true, not only from a quan ative sense but from a qualitative sense. The population over here (Ottawa) tends to be much more affluent and content than in TX. Minnesota and Maine are the closest US states with similarities in my experience. Cost of living is higher in the populated areas, but just about everyone gets paid more and if you wish you can move far out from the city for cheap living.
As far as medicine and wait times, the longest I have waited so far in a brief sample of 3 months is half of an hour. The 2 doctors I have seen here were pretty attentive and knowledgable as well. Whereas in TX, it was more hit or miss, especially since many are going their to avoid litigation and medical board restrictions.
However, the U.S. does top Canada in murders, numbers of wars currently engaged in and personal bankruptcies due to health care costs.