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Medicare Part D demonstrates drug coverage for beneficiaries, revealing challenges in spending growth and cost control strategies.
Despite initial controversy and uncertainties, Medicare Part D now provides drug coverage to thirty-nine million beneficiaries through dozens of private plans in each region. Although firmly established, the program faces challenges, including projected spending growth. Enrollees also face challenges as plans adopt new strategies to control costs.
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Hoadley et al. (2015) studied this question.
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