Yes, it is mandatory for doctors' and dentists' practices and physiotherapists to use the insurance master data management system (VSDM in Germany) if they treat patients with statutory health insurance. A prerequisite for the implementation of VSDM is a TI connection.
However, some groups of physicians who are not required to use VSDM have also had to be connected to the TI for almost two years. If they do not comply with this obligation, this leads to a penalty in the form of fee reductions.
Connection to the central infrastructure is also necessary to be able to communicate with other players in the healthcare system via kim+. For example, a KIM solution has been mandatory since April 1, 2021, for all practices that wish to transmit an ePhysician letter.
From January 1, 2024, all outpatient care facilities in Germany must also have TI access - until then, a connection remains voluntary.