Implementing electronic medical records in primary care can provide financial benefits according to a cost-benefit analysis. The analysis estimated a net benefit of $86,400 per provider over 5 years from savings in areas like drug costs, radiology tests, billing charges, and errors. However, the results were sensitive to factors like the proportion of patients under capitated care, with the net benefit ranging from $8,400 to $140,100 under different assumptions. Even under pessimistic assumptions, the analysis found electronic records could result in a small net benefit rather than a net cost compared to traditional paper records.