Section 1: Part D Enrollment and Plan Availability
    View Exhibits
    1. Exhibit 1.1: Medicare Part D Enrollment (in Millions), by Plan Type, 2006-2016
    2. Exhibit 1.2: Percent of Medicare Beneficiaries Enrolled in Medicare Part D Plans, by State, 2016
    3. Exhibit 1.3: Distribution of Medicare Part D Enrollment, by Plan Type, 2006-2016
    4. Exhibit 1.4: Percent of Medicare Part D Enrollees in Stand-Alone PDPs, by State, 2016
    5. Exhibit 1.5: Enrollment in Employer-Only Medicare Part D Plans and the Retiree Drug Subsidy (in Millions), by Plan Type, 2006-2016
    6. Exhibit 1.6: Distribution of Medicare Part D Enrollment, by Firm, 2016
    7. Exhibit 1.7: Distribution of Medicare Part D Enrollment, by Firm and Plan Type, 2006 and 2016
    8. Exhibit 1.8: Number of Medicare Part D Regions, by Level of Market Concentration for LIS and Non-LIS Enrollees, 2016
    9. Exhibit 1.9: Distribution of Stand-Alone PDP Enrollment, by National/Near-National Plan Availability, 2016
    10. Exhibit 1.10: Top 10 Firms Offering Medicare Part D Plans Ranked by 2016 Enrollment
    11. Exhibit 1.11: Distribution of Enrollment in Top 10 Firms Offering Medicare Part D Plans, by Plan Type, 2016
    12. Exhibit 1.12: Top 10 Medicare Part D Plans Ranked by 2016 Enrollment
    13. Exhibit 1.13: Enrollment in Medicare Part D Stand-Alone PDPs Offered by Major PDP Sponsors, 2006-2016
    14. Exhibit 1.14: Top 5 Medicare Part D Stand-Alone PDPs for LIS Enrollment in 2016
    15. Exhibit 1.15: Top 5 Medicare Part D Stand-Alone PDPs for Non-LIS Enrollment in 2016
    16. Exhibit 1.16: Average Number of Medicare Part D Plans Offered to Enrollees, 2006-2016
    17. Exhibit 1.17: Number of Medicare Part D Stand-Alone Prescription Drug Plans, 2006-2016
    Section 3: Part D Benefit Design and Cost Sharing
    View Exhibits
    1. Exhibit 3.1: Percent of Medicare Part D Enrollees in Plans with Selected Benefit Design Characteristics, by Plan Type, 2016
    2. Exhibit 3.2: Distribution of Enrollment in Basic and Enhanced Benefit Stand-Alone PDPs, 2006-2016
    3. Exhibit 3.3: Distribution of Enrollment in Medicare Part D Stand-Alone PDPs, by Deductible Amount, 2006-2016
    4. Exhibit 3.4: Distribution of Enrollment in Medicare Part D Plans, by Plan Type and Deductible Amount, 2015-2016
    5. Exhibit 3.5: Percent of Enrollment in Medicare Part D Stand-Alone PDPs, by Formulary Tier Design, 2006-2016
    6. Exhibit 3.6: Percent of Enrollment in Medicare Advantage Drug Plans, by Formulary Tier Design, 2006-2016
    7. Exhibit 3.7: Median Cost Sharing for Medicare Part D Plans, 2006-2016, and Employer-Sponsored Plans, 2015
    8. Exhibit 3.8: Distribution of Medicare Part D Plan Enrollment, by Plan Type and Generic Copayment Amount, 2016
    9. Exhibit 3.9: Distribution of Medicare Part D Plan Enrollment, by Plan Type and Type of Cost Sharing for Brand-Name Drugs, 2016
    10. Exhibit 3.10: Distribution of Enrollment in Medicare Part D Plans with Preferred Brand Tiers, by Plan Type and Copayment Amount, 2016
    11. Exhibit 3.11: Distribution of Enrollment in Part D Plans with Non-Preferred Brand Tiers, by Coinsurance Rate for PDPs and Copayment Amount for MA-PD Plans, 2016
    12. Exhibit 3.12: Distribution of Enrollment in Medicare Part D Plans with Specialty Tiers, by Plan Type and Coinsurance Rate, Selected Years
    13. Exhibit 3.13: Number of Stand-Alone PDPs with and without Tiered Pharmacy Networks, 2011-2016
    14. Exhibit 3.14: Distribution of Medicare Part D Plans, by Plan Type and Use of a Tiered Pharmacy Network, 2016
    15. Exhibit 3.15: Median Cost Sharing for Generic and Brand-Name Drugs at Preferred and Standard Cost-Sharing Pharmacies in Stand-Alone PDPs, 2016
    16. Exhibit 3.16: Distribution of Medicare Part D Plans and Enrollment, by Plan Type and Gap Coverage, 2016
    17. Exhibit 3.17: Weighted Average Monthly Premiums for Medicare Part D Stand-Alone PDPs, by Gap Coverage, 2016
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    Exhibit 3.1

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    Exhibit 4.1

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    Exhibit 5.1

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    Exhibit 5.3

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