Do you have to pay a medical bill for services performed last year?

Any unpaid medical bill will remain your responsibility until it is paid in full. If you don't have insurance to pay the bill for you, then you will need to pay the bill. You can be turned over to a collection agency if the bill is not paid. Either the provider or the collection agency will work out a payment plan with you. The easiest way is to call them and let them know how much $$ per month you can afford to send until the bill is paid off.