Which Medigap plans were introduced effective June 1, 2010?

Plans M and N were the new Medigap plans introduced on June 1, 2010. These plans were designed to provide more options for Medicare beneficiaries by offering different cost-sharing arrangements.

Plan M has a lower premium than some other plans but requires the beneficiary to cover some cost-sharing, specifically, a portion of the Medicare Part A deductible. This can make it appealing for those who are willing to take on some out-of-pocket expenses in exchange for a lower monthly premium.

Plan N introduces a similar concept by offering a lower premium in exchange for increased cost-sharing responsibilities, such as copayments for certain types of services. By offering these plans, the Medicare program aims to enhance consumer choice and allow beneficiaries to tailor their coverage based on their individual needs and preferences.

The other options listed represent plans that were in existence before June 2010 or were not introduced at that time, making them irrelevant to the question about new plans introduced on that specific date.