By 2029, this number will increase to 4.1 million (9.6 percent) enrollees.

The analysis also found that the impact of the new Part D out-of-pocket cap will vary by demographic characteristics.

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A latino baby boomer sits at his dining room table and sorts through various prescription medications as sunlight filters in through the window behind him bathing the room with a soft glow of light.

An elderly man taking medication in his kitchen.

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