The right of free movement of people and services, which is essential for the functioning of the European Union made it necessary to provide citizens of the European Union, moving within the community, to access the benefi ts of the social security systems. Particularly: health services in any member state other than the citizen’s own. In order to submit a comprehensive application of the regulations on coordination of social security, by the National Health Fund, an analysis of basic legal acts establishing the existing formal and procedural solutions, necessary for an understanding of this issue, has been done. The paper is a theoretical and empirical analysis of facts, based on the statutory duties and implementation, undertaken by the National Health Fund, using statistical data from reports prepared by the Head of the National Health Fund, gathered in The Central Registry of Insured Persons.