Region Lowest Copayment (Dollar Amount) Median Copayment (Dollar Amount) Highest Copayment (Dollar Amount) Northeast $5.00 $10.00 $15.00 South $0.00 $10.00 $35.00 Midwest $8.00 $10.00 $15.00 West $4.00 $10.00 $25.00 Total $0.00 $10.00 $35.00