A copay (or copayment) is a flat fee that you pay on the spot each time you go to your doctor or fill a prescription. Copays cover your portion of the cost of a doctor’s visit or medication. The amount of your copay varies based on the plan you have chosen.
A deductible is the amount you pay for most eligible medical services or medications before your health plan begins to share in the cost of covered services.
Coinsurance is a portion of the medical cost you pay after your deductible has been met. Coinsurance is a way of saying that you and your insurance carrier each pay a share of eligible costs that add up to 100 percent.