In a computerized system and method for scheduling medical procedures implemented by a number of medical apparatuses in a clinic or hospital, an exam or therapy is scheduled using a particular medical apparatus with a set time duration, and the exam or therapy is conducted and the actual time duration occupied by the medical apparatus to conduct the exam or therapy is recorded. The time durations for each medical procedure conducted by each medical apparatus are entered into and stored in a statistical data base. A scheduling computer has access to this statistical data base, and the next exam or therapy for the same apparatus is then scheduled using a time duration that is statistically updated based on the statistical compilation in the data base.