The key to the extensive doctor and hospital services is the AOK health card. It has a chip, which has your insurance data stored on it. These include, for example, name, date of birth, gender and address. A passport photograph protects against misuse. In addition, details regarding the health insurance – such as health insurance number and insurance status – are included. Each of your co-insured family members receives their own AOK health card. Simply present the health card each time your visit the doctor or also in hospitals and the services received are directly settled with the AOK.