Payer (noun)

A person or organization that pays, especially for goods or services.

Origin:

Late middle english: from old french paier, from latin pacare "pay".

Examples:

1. The insurance company was the main payer for her medical expenses.
2. The government is the largest payer of health care in the country.
3. The payer agreed to cover the cost of the procedure after it was deemed medically necessary.
4. The payer was responsible for the payment of the bills for the duration of the contract.
5. The payer had the option to choose between multiple payment methods, including credit card or direct deposit.