Abstract: An apparatus for monitoring physiological data generated by sensors disposed on or in a patient. The apparatus includes an interface operable to receive data signals generated by the sensors and a data processor coupled to the interface and operable to format data signals received from the interface into one or more frames of data where each frame includes a transmitter identifier that is unique to the apparatus. A transmitter is included that is operable to receive the frames from the data processor and broadcast the frames using radio frequency signals to a local receiver located in close proximity to the patient. A patch is adhesively attached to the patient and has a first surface on which the interface, data processor and transmitter are disposed.