The Atlas International plan doesn't provide coverage within the United States. Only individuals traveling internationally, excluding the U.S. will be eligible for Atlas International.
Outside the U.S., the PPO network for Atlas International is Equian International. If you're using Atlas International Insurance while traveling in a country outside the U.S., you may visit a doctor or hospital within the Equian International Provider Network, or you may visit any doctor or hospital of your choice.
However, by visiting a health service provider within the network, you're guaranteed the convenience of direct billing from the doctor or hospital to the insurance company since WorldTrips has coordinated with the healthcare providers within the PPO Network to ensure that direct billing arrangements are set.