Fee-for-service is a payment model where healthcare providers are paid for each specific service they perform. This means that doctors, hospitals, and other providers receive a fee for every visit, test, or procedure, encouraging them to offer more services to patients. In this system, patients may have more choices regarding their care, as they can seek services from various providers. However, it can also lead to higher healthcare costs, as there is less incentive for providers to focus on preventive care or cost-effective treatments, potentially resulting in unnecessary procedures.