An insurance card is a small card issued by an insurance company that provides proof of an individual's health or auto insurance coverage. It typically includes important information such as the policyholder's name, policy number, and the type of coverage. This card is essential for accessing medical services or filing claims. When visiting a healthcare provider or a repair shop, individuals present their insurance card to verify their coverage. The card helps streamline the billing process, ensuring that the provider knows how to bill the insurance company for services rendered.