An apparatus includes a memory and a processor. The memory stores multiple medical and surgical risk factors. Each medical and surgical risk factor correlates to a possible adverse event or complication occurring during a perioperative period associated with a particular physician or medical institution. The processor performs a risk determination cycle that includes calculating, for the multiple medical and surgical risk factors, individual medical and surgical risk scores, each indicating a likelihood of the possible adverse event or complication for a respective one of the medical and surgical risk factors. The risk determination cycle includes calculating a total medical and surgical risk score by summing the individual medical and surgical risk scores. The risk determination cycle includes calculating a strength of the likelihood of the possible adverse event or complication by comparing the total medical and surgical risk score with scores in a risk range.
