The aim of the study was to analyze the effect of a financial incentive program targeting primary care providers (PCPs) with the goal of decreasing emergency department (ED) utilization. We performed a retrospective cohort analysis in a single health maintenance organization comparing ED visit/1000 member-months before and after the physician incentive program in 2009. We compared the median ED visit rate between physicians who did (PIP) and did not participate (non-PIP) from 2009 to 2012. We used 2008 data as a baseline study period to compare the ED visit rate between PIP and non-PIP providers to detect any inherent difference between the 2 groups. A total of 1376 PCPs were enrolled. A total of US $18,290,817 was spent in total on incentives. Overall, the median ED visit rate for all providers was statistically significantly lower during the study period (baseline period, study period: 56.36 ED visits/1000 member-months vs 45.82, respectively, P < 0.001). During the baseline period in our fully adjusted linear regression for degree, specialty, education, and board status, PIP versus non-PIP visits were not statistically significantly different (P = 0.17). During the study period in our fully adjusted model, we found that PIP had statistically significant fewer ED visits compared with non-PIP (P = 0.02). In a subgroup analysis of providers who did and did not receive an incentive payment, in the fully adjusted linear regression, providers who received any payment had statistically significant fewer ED visits/1000 member-months (P < 0.001). In addition, we found in the fully adjusted analysis that those providers who received at least 1 incentive payment for meeting after-hours criteria had statistically significantly fewer ED visits/1000 member-months (P < 0.001). A financial incentive program to provide PCPs with specific targets and goals to decrease pediatric ED utilization can decrease ED visits.
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