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. 2008 Dec;86(4):629–659. doi: 10.1111/j.1468-0009.2008.00537.x

TABLE 2.

Proportion of Administrative Costs Related to Billing and Insurance-Related (BIR) Functions

BIR as % of Revenue Administrative Costs as % of Revenue BIR as % of Administrative Costs
Private insurance–commercial plans 8.4 9.9 84.8
Hospitals 6.6–10.8 20.9 31.6–51.7
Physicians' groups (multispecialty) 13.9 26.7 52

Source: Kahn et al. 2005.