Exemplary methods, apparatuses, and systems generate and maintain patient-specific models of patient data to assist in monitoring a patient's unique health conditions, and to provide more informative analyses of patient data and the relationships between elements of patient data. When a patient modeling server receives patient data from an external device, the patient modeling server determines whether values for elements of patient data satisfy individualized ranges for the elements of patient data, specific to the patient. In response to this determination, the patient modeling server can transmit notification and/or alert messages, and modify the individualized ranges for the elements of patient data. The patient modeling server also determines relationships between elements of patient data, based on analyses performed on the elements of patient data, to generate patient-specific models.