Region Lowest Copayment (Dollar Amount) Median Copayment (Dollar Amount) Highest Copayment (Dollar Amount) Northeast $5.00 $20.00 $45.00 South $0.00 $20.00 $105.00 Midwest $16.00 $25.00 $37.50 West $5.00 $20.00 $50.00 Total $0.00 $20.00 $105.00