The core benefit of the Medigap insurance program is that it helps fill the gaps in coverage left by Original Medicare. Medigap plans are sold by private insurance companies and are designed to cover the out-of-pocket costs that Medicare does not pay for, such as deductibles, copayments, and coinsurance. This can provide individuals with greater financial protection and peace of mind when it comes to their healthcare expenses. It's important to note that Medigap plans do not cover prescription drugs, so if you need prescription drug coverage, you may need to enroll in a separate Medicare Part D plan. Additionally, Medigap plans are standardized and regulated by the federal government, which means that the benefits offered by each plan are the same, regardless of the insurance company you choose. This can make it easier to compare and choose a plan that best meets your needs.