A method for analyzing ECG data includes recording a biometric identifier from a patient and encoding the biometric identifier to create a patient's encoded biometric identifier. The method further includes accessing an ECG database of prior ECG files, each prior ECG file containing a prior ECG waveform and a prior encoded biometric identifier therein. The method further includes comparing the patient's encoded biometric identifier to the prior encoded biometric identifier of one or more of the prior ECG files to locate a matching prior ECG file containing the prior encoded biometric identifier that matches the patient's encoded biometric identifier, and then presenting the matching prior ECG file.
