Healthcare in Belgium is financed through both social security contributions and taxation. Health insurance is compulsory. Health care is delivered by a mixed public and private system of independent medical practitioners and public, university and semi-private hospitals. Health care service are payable by the patient and reimbursed later by health insurance institutions, but for ineligible categories (of patients and services) so-called 3rd party payment systems exist. The Belgian health care system is supervised and financed by the federal government, the Flemish and Walloon Regional governments; and the German Community also has (indirect) oversight and responsibilities.