Insurance holder's burden

• Chip-in at a doc's office
• Patient's part of a doctor's fee
• Drug charge?
• Number at a doctor's office
• Patient's portion
• Cost of a doctor's visit, if you're insured
• Patient share
• Patient's liability
• One's share of a medical bill, maybe

Wiktionary Word definitions in Wiktionary
n. A copayment. vb. To jointly pay with another or others.