From 1965 a method for determining an approved charge for a specific service for a physician before the implementation of the Medicare Fee Schedule in 1992. The approved charge is the lowest of the following three charges: the physician’s actual charge for the service, the physician’s customary charge for the service, and the charges made by each physician in the same geographical location. Currently, Medicare payment is based on a resource-based relative value scale (RBRVS) and not on CPR charges.