Healthcare payers are entities that pay for or reimburse the cost of healthcare services. This can include private insurance companies, government health insurance programs (such as Medicare and Medicaid), and self-insured employer health plans. Healthcare payers play a crucial role in the healthcare system by providing financial coverage for medical expenses, including hospital stays, doctor visits, prescription medications, and other health-related services. They also negotiate with healthcare providers to determine reimbursement rates and coverage policies.