If your travel mainly includes the United States, then it is an obvious choice to purchase visitor medical insurance from an American provider. The main reasoning for this is that these local plans have wider acceptability with doctors, hospitals, and other care givers, and as well as offer better compliance with the local rules and regulations. As an insured, if you have insurance from a foreign based provider for visiting America, you could end up having to run pillar to post in the event of a claim.