1. A method of operating a medical device system, the method comprising: receiving a value of a programmable parameter of an ambulatory cardiac rhythm device from a user; comparing, by the medical device system, the value of the programmable parameter to a distribution of values for the programmable parameter, wherein the distribution is representative of values of the parameter programmed for a patient population; and presenting results of the comparison to the user; wherein the programmable parameter is a mode in which the cardiac rhythm device operates or a lower rate limit for the cardiac rhythm device; wherein presenting the results of the comparison to the user includes identifying a number of occurrences of the value of the parameter programmed in the patient population.