A new report indicates the costs for some preventive medical examinations may vary as widely as 700-percent. It also says that as the federal healthcare law increases demand for procedures, premiums could jump if employees don't pay attention to the costs. In some cases, costs for the same tests ranged from 786-dollars to nearly two-thousand bucks. Prices can be affected by several things, such as whether a provider is in a rural or urban area, whether the service is performed at a hospital and whether a clinic specializes in a procedure. Change Healthcare President Doug Ghertner says companies need to provide cost information to their workers and provide a reason for them to look for options that are less expensive or better quality.