VisitorsHealthInsurance.com has many articles and reviews on visitor medical insurance and the mandatory need for visitors coverage for visitors to USA. Why should someone visiting the United States of America or Canada always purchase visitor health insurance prior to embarking to the US. The reasons are simple and straightforward, the cost of care in the US is practically very high when compared to the rest of the world. Hence it is prudent to purchase a visitor insurance plan from a US based company as these are widely accepted by doctor offices and hospital emergency rooms.