Final answer:
Medigap coverage is offered to Medicare beneficiaries by private insurance companies to fill in the gaps in coverage that original Medicare does not pay for.
Step-by-step explanation:
Medigap coverage is offered to Medicare beneficiaries by private insurance companies. Medigap, also known as Medicare Supplement Insurance, is designed to fill in the gaps in coverage that original Medicare does not pay for, such as copayments, deductibles, and coinsurance. It is important for Medicare beneficiaries to understand that Medigap plans are sold by private insurance companies and not directly by the government.