Health insurance companies are organizations that provide coverage for medical expenses. They help individuals and families pay for healthcare services, such as doctor visits, hospital stays, and prescription medications. By paying a monthly premium, policyholders can receive financial assistance when they need medical care, reducing the burden of high costs. These companies operate by pooling the risks of many policyholders, allowing them to share the costs of healthcare. They often offer various plans with different levels of coverage, deductibles, and co-pays, enabling consumers to choose options that best fit their needs and budgets.