Treatment system for a patient, preferably for performing a dialysis treatment, including a medical apparatus, preferably a dialysis apparatus, having a communication device which is configured to emit a wireless interrogation signal and receive a wireless identification signal, and an identification device which can be carried by an operator to identify the operator. The identification device is preferably embodied as a watch and is configured to send a wireless identification signal to the medical apparatus to confirm the identity of the operator and that the operator is authorized to operate the medical apparatus to which the signal has been sent.