From the article:
The number of doctors who opted out of Medicare last year, while a small proportion of the nation's health professionals, nearly tripled from three years earlier, according to the Centers for Medicare and Medicaid Services, the government agency that administers the program. Other doctors are limiting the number of Medicare patients they treat even if they don't formally opt out of the system.NPR: "Canvassers For Health Coverage Find Few Takers In Boca Raton" (7/29/2013)
BBC: "South African chef 'too fat' to live in New Zealand" (7/27/2013)
According to the New Zealand government, "It is important that all migrants have an acceptable standard of health to minimise costs and demands on New Zealand's health services..."