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Home Global Executive Dashboard Medicare Part D Enrollment and Costs in 2023

Medicare Part D Enrollment and Costs in 2023

Figure 1

More Medicare Part D Enrollees Are in Medicare Advantage Drug Plans Than in Stand-alone Prescription Drug Plans

NOTE: PDP is stand-alone prescription drug plan. MA-PD is Medicare Advantage drug plan. Includes enrollment in the territories and employer group plans. MA-PD enrollment includes Medicare Advantage HMOs, PPOs, private fee-for-service, and Medicare Savings Account plans; other private plan types (including Cost, PACE, and Medicare-Medicaid plans) excluded.SOURCE: KFF analysis of Centers for Medicare & Medicaid Services Part D enrollment data.

Figure 2

The Top 3 Firms - UnitedHealth, CVS Health, and Humana - Cover Close to 6 in 10 Medicare Part D Enrollees in 2023

NOTE: Includes enrollment in the territories and employer group plans. MA-PD enrollment includes Medicare Advantage HMOs, PPOs, private fee-for-service, and Medicare Savings Account plans; other Medicare private plans (including Medicare-Medicaid plans, Cost, and PACE) excluded.SOURCE: KFF analysis of Centers for Medicare & Medicaid Services Part D enrollment data.

Figure 3

Most of the Major Firms Sponsoring Medicare Part D Plans Offer Both Medicare Advantage and Stand-alone Drug Plans

NOTE: PDP is stand-alone prescription drug plan. MA-PD is Medicare Advantage drug plan. Includes enrollment in the territories and employer group plans. MA-PD enrollment includes Medicare Advantage HMOs, PPOs, private fee-for-service, and Medicare Savings Account plans; other Medicare private plans (including Medicare-Medicaid plans, Cost, and PACE) excluded.

SOURCE: KFF analysis of Centers for Medicare & Medicaid Services Part D enrollment data.

Figure 4

Six in 10 Beneficiaries Receiving the Part D Low-Income Subsidy Are Enrolled in Medicare Advantage Drug Plans

NOTE: PDP is stand-alone prescription drug plan. MA-PD is Medicare Advantage drug plan. Includes enrollment in the territories and employer group plans. MA-PD enrollment includes Medicare Advantage HMOs, PPOs, private fee-for-service, and Medicare Savings Account plans; other Medicare private plans (including Medicare-Medicaid plans, Cost, and PACE) excluded.

SOURCE: KFF analysis of Centers for Medicare & Medicaid Services Part D enrollment data.

Figure 5

The Average Monthly Premium for Part D Coverage in Stand-alone Drug Plans Is 4 Times More Than in Medicare Advantage Drug Plans in 2023

NOTE: PDP is stand-alone prescription drug plan. MA-PD is Medicare Advantage drug plan. Estimates are weighted by enrollment and exclude employer plans and Special Needs Plans; also excludes other Medicare private plan types, including Medicare-Medicaid plans, Cost, and PACE. The average premium for MA-PDs is for Part D coverage only, excluding any applicable premium charged for medical (Part A and B) benefits.SOURCE: KFF analysis of Centers for Medicare & Medicaid Services Part D enrollment and landscape files.

Figure 6

The Average Annual Part D Deductible is 7 Times Larger in Stand-alone Drug Plans than in Medicare Advantage Drug Plans in 2023

NOTE: PDP is stand-alone prescription drug plan. MA-PD is Medicare Advantage drug plan. Estimates exclude employer plans and Special Needs Plans; also excludes other Medicare private plans, including Medicare-Medicaid plans, Cost, and PACE.SOURCE: KFF analysis of Centers for Medicare & Medicaid Services Part D enrollment and landscape files. 

Figure 7

Medicare Part D Enrollees Typically Face No or Low Monthly Copays for Generic Drugs but Substantially Higher Copays or Coinsurance for Other Drugs

Formulary tier

Preferred generics

Copayment

Generics

Copayment

Preferred brands

Copayment

Non-preferred drugs

Copayment
(Less than $95, $95 to <$100, $100)

Coinsurance
(Less than 40%, 40% to 50%,50%)

Specialty-tier drugs

Copayment

Less than 25%: < 1%
25%: < 1%

NOTE: PDP is stand-alone prescription drug plan. MA-PD is Medicare Advantage drug plan. Estimates exclude employer plans and Special Needs Plans; also excludes other Medicare private plans, including Medicare-Medicaid plans, Cost, and PACE.SOURCE: KFF analysis of Centers for Medicare & Medicaid Services Part D enrollment and benefits data.  

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