What action do consumers already enrolled in plans C or F need to take after January 1, 2020?

Consumers already enrolled in plans C or F do not need to take any action after January 1, 2020, because these plans were "grandfathered" under the Medicare regulations. This means that individuals who were enrolled in these plans before the implementation of the new regulations can continue their coverage without disruption. The changes that took effect on January 1, 2020, primarily apply to new enrollees and do not affect those who already have coverage. Thus, existing beneficiaries can continue to receive the benefits from their plans without having to switch, confirm, or update their information unless they choose to make changes for other reasons.