HTH Worldwide Insurance Services, a division of Worldwide Insurance Services, LLC offers a variety of travel medical insurance across the U.S. under leading brands. Travelers can venture confidently knowing that HTH works hard to deliver innovative, world-class service, including state-of-the-art mobile and web-based medical assistance tools and databases. From a careful selection process for doctors and hospitals, to medical assistance, HTH programs meet the highest expectations for quality and service.