SHORT-TERM VISITS TO THE UNITED STATES. Each year, the United States hosts millions of foreign visitors from all over the world. While the United States healthcare system is recognized as one of the best in the world, many visitors are concerned about the potential out-of-pocket expenses that could result from an injury or sickness during their visit to the United States of America. Healthcare costs are different in the United States than any other country around the world. That is why foreign nationals visiting the United States of America require VISITORS medical insurance to protect them and their family. Our choices of Visitor Plans do not require medical underwriting.