Medicare Part D

Eligibility and enrollment To enroll in Part D, Medicare beneficiaries must also be enrolled in either Part A or Part B. Beneficiaries can participate in Part D through a stand-alone prescription drug plan or through a Medicare Advantage plan that includes prescription drug benefits. Beneficiaries can enroll directly through the plan's sponsor or through an intermediary. Medicare beneficiaries who delay enrollment into Part D may be required to pay a late-enrollment penalty. In 2019, 47 million beneficiaries were enrolled in Part D, which represents three-quarters of Medicare beneficiaries. Although plans are restricted by numerous program requirements, plans vary in many ways. Among other factors, enrollees often compare premiums, covered drugs, and cost-sharing policies when selecting a plan. Medicare offers an interactive online tool that allows for comparison of coverage and costs for all plans in a geographic area. The tool lets users input their own list of medications and then calculates personalized projections of the enrollee's annual costs under each plan option. Plans are required to submit biweekly data updates that Medicare uses to keep this tool updated throughout the year. In 2021, a new program, the Senior Savings Model, was introduced which was aimed at reducing out-of-pocket costs for insulin. Costs to beneficiaries Beneficiary cost sharing Part D includes a statutorily defined "standard benefit" that is updated on an annual basis. All Part D sponsors must offer a plan that follows the standard benefit. The standard benefit is defined in terms of the benefit structure and without mandating the drugs that must be covered. For example, under the 2020 standard benefit, beneficiaries first pay a 100% coinsurance amount up to a $435 deductible. Second, beneficiaries pay a 25% coinsurance amount up to an Out-of-Pocket Threshold of $6,350. In the final benefit phase, beneficiaries pay the greater of a 5% coinsurance amount or a nominal co-payment amount. These three benefit phases are referred to as the Deductible, Initial Coverage Limit, and the Catastrophic phase. The "Out-of-Pocket Threshold" is not a cap on out-of-pocket spending, as beneficiaries continue to accrue cost-sharing expenses in the Catastrophic phase. In 2020, beneficiaries would typically reach this threshold as their retail drug spending approached $10,000. When patients enter the Catastrophic phase, the amount they have paid in cost-sharing is typically much less than the Out-of-Pocket Threshold. This is because the standard benefit requires plans to include additional amounts, such as manufacturer discounts, when determining if the Out-of-Pocket Threshold has been met. Part D sponsors may also offer plans that differ from the standard benefit, provided that these alternative benefit structures do not result in higher average cost-sharing. In practice, most enrollees do not elect for standard benefit plans, instead opting for plans without deductibles and with tiered drug co-payments rather than coinsurance. Premiums for stand-alone PDPs are 3 times higher than premiums for MA-PDs, as Medicare Advantage plans often use federal rebates to reduce premiums for drug coverage. Enrollees typically pay their premiums directly to plans, though they may opt to have their premiums automatically deducted from their Social Security checks. Plans offer competitive premiums to attract enrollees. Premiums must cover the cost of both plan liability and the reinsurance subsidy. From 2017 to 2020, despite rising per capita drug spending, premiums decreased by 16%. Plans have been able to lower premiums by negotiating larger rebates from manufacturers and pharmacies. Between 2017 and 2020, the percentage of drug costs rebated back to plans increased from 22% to 28%. In addition, the standard benefit was changed in 2019 to increase mandatory manufacturer discounts in the Coverage Gap. Part D practices community rating, with all enrollees in a plan being assigned the same premium. Enrollees do pay more in premiums if they enroll in higher-than-average-cost plans or in plans that offer enhanced benefits. Like in Part B, higher-income enrollees are required to pay an additional premium amount. Low-income enrollees may have their premium reduced or eliminated if they qualify for the low-income premium subsidy. For 2022, costs for stand-alone Part D plans in the 10 major U.S. markets ranged from a low of $6.90-per-month (Dallas and Houston) to as much as $160.20-per-month (San Francisco). A study by the American Association for Medicare Supplement Insurance reported the lowest and highest 2022 Medicare Plan D costs for the top-10 markets. Retiree drug subsidy (RDS) Retiree Drug Subsidy (RDS) is a program that provides financial assistance to employers who offer prescription drug coverage to their retirees. The subsidy is a feature of Medicare Part D, designed to help retirees access affordable prescription medications. Low-income subsidies Beneficiaries with income below 150% of the poverty line are eligible for the low-income subsidy, which helps pay for premiums and cost-sharing. Depending on income-level and assets, some beneficiaries qualify for the full low-income subsidy, while others are eligible for a partial subsidy. All low-income subsidy enrollees still pay small copayment amounts. Low-income enrollees tend to have more chronic conditions than other enrollees. Low-income subsidy enrollees represent about one-quarter of enrollment, but about half of the program's retail drug spending. Excluded drugs While Centers for Medicare & Medicaid Services (CMS) does not have an established formulary, Part D drug coverage excludes drugs not approved by the Food and Drug Administration, drugs not available by prescription for purchase in the United States, and drugs for which payments would be available under Part B. Part D coverage excludes drugs or classes of drugs that may be excluded from Medicaid coverage. These may include: • Drugs used for anorexia, weight loss, or weight gain • Drugs used to promote fertility • Drugs used for erectile dysfunction • Drugs used for cosmetic purposes (hair growth, etc.) • Drugs used for the symptomatic relief of cough and colds • Prescription vitamin and mineral products, except prenatal vitamins and fluoride preparations • Drugs where the manufacturer requires as a condition of sale any associated tests or monitoring services to be purchased exclusively from that manufacturer or its designee While these drugs are excluded from basic Part D coverage, drug plans can include them as a supplemental benefit, provided they otherwise meet the definition of a Part D drug. However plans that cover excluded drugs are not allowed to pass on those costs to Medicare, and plans are required to repay CMS if they are found to have billed Medicare in these cases. Plan formularies Part D plans are not required to pay for all covered Part D drugs. They establish their own formularies, or list of covered drugs for which they will make payment, as long as the formulary and benefit structure are not found by CMS to discourage enrollment by certain Medicare beneficiaries. Part D plans that follow the formulary classes and categories established by the United States Pharmacopoeia will pass the first discrimination test. Plans can change the drugs on their formulary during the course of the year with 60 days' notice to affected parties. The primary differences between the formularies of different Part D plans relate to the coverage of brand-name drugs. Typically, each Plan's formulary is organized into tiers, and each tier is associated with a set co-pay amount. Most formularies have between 3 and 5 tiers. The lower the tier, the lower the co-pay. For example, Tier 1 might include all of the Plan's preferred generic drugs, and each drug within this tier might have a co-pay of $5 to $10 per prescription. Tier 2 might include the Plan's preferred brand drugs with a co-pay of $40 to $50, while Tier 3 may be reserved for non-preferred brand drugs which are covered by the plan at a higher co-pay, perhaps $70 to $100. Tiers 4 and higher typically contain specialty drugs, which have the highest co-pays because they are generally more expensive. By 2011 in the United States a growing number of Medicare Part D health insurance plans had added the specialty tier. == History ==

Upon enactment in 1965, Medicare included coverage for physician-administered drugs, but not self-administered prescription drugs. While some earlier drafts of the Medicare legislation included an outpatient drug benefit, those provisions were dropped due to budgetary concerns. In response to criticism regarding this omission, President Lyndon Johnson ordered the formation of the Task Force on Prescription Drugs. The Task Force conducted a comprehensive review of the American prescription drug market and reported that many elderly Americans struggled to afford their medications. Despite the findings and recommendations of the Task Force, initial efforts to create a Medicare outpatient drug benefit were unsuccessful. In 1988, the Medicare Catastrophic Coverage Act temporarily expanded program benefits to include self-administered drugs. However, this legislation was repealed just one year later, partially due to concerns regarding premium increases. The 1993 Clinton Health Reform Plan also included an outpatient drug benefit, but that reform effort ultimately failed due to a lack of public support. In the decades following Medicare's passage, prescription drug spending grew and became increasingly financed through third-party payment. Following an era of modest growth, per capita drug spending began growing rapidly in the 1980s. This growth was partially spurred by the launch of many billion dollar “blockbuster drugs” like Lipitor, Celebrex, and Zoloft. At the time of Medicare's passage, more than 90% of drug spending was paid out-of-pocket. Medicare began offering subsidized outpatient drug coverage in the mid-2000s. In the 2000 presidential election, both the Democratic and Republican candidates campaigned on the promise of using the projected federal budget surplus to fund a new Medicare drug entitlement program. Following his electoral victory, President George W. Bush promoted a general vision of using private health plans to provide drug coverage to Medicare beneficiaries. and research consistently found that this coverage gap reduced medication adherence. The Affordable Care Act and subsequent legislation phased-out the coverage gap from the perspective of beneficiaries. As of 2020, beneficiary cost-sharing on covered drugs never exceeds 25% of the drug's cost after an enrollee meets their deductible. == Program costs ==

In 2019, total drug spending for Medicare Part D beneficiaries was about $180 billion. One-third of this amount, about $120 billion, was paid by prescription drug plans. This plan liability amount was partially offset by about $50 billion in discounts, mostly in the form of manufacturer and pharmacy rebates. In addition to the $60 billion paid in federal insurance subsidies, the federal government also paid about $30 billion in cost-sharing subsidies for low-income enrollees. == Implementation issues ==

• Plan and Health Care Provider goal alignment: PDP's and MA's are rewarded for focusing on low-cost drugs to all beneficiaries, while providers are rewarded for quality of care – sometimes involving expensive technologies. • Conflicting goals: Plans are required to have a tiered exemptions process for beneficiaries to get a higher-tier drug at a lower cost, but plans must grant medically necessary exceptions. However, the rule denies beneficiaries the right to request a tiering exception for certain high-cost drugs. • Lack of standardization: Because each plan can design their formulary and tier levels, drugs appearing on Tier 2 in one plan may be on Tier 3 in another plan. Co-pays may vary across plans. Some plans have no deductibles and the coinsurance for the most expensive drugs varies widely. Some plans may insist on step therapy, which means that the patient must use generics first before the company will pay for higher-priced drugs. Patients can appeal and insurers are required to respond within a short timeframe, so as to not further the burden on the patient. • Standards for electronic prescribing for Medicare Part D conflict with regulations in many U.S. states. == Impact on beneficiaries ==

A 2008 study found that the percentage of Medicare beneficiaries who reported forgoing medications due to cost dropped with Part D, from 15.2% in 2004 and 14.1% in 2005 to 11.5% in 2006. The percentage who reported skipping other basic necessities to pay for drugs also dropped, from 10.6% in 2004 and 11.1% in 2005 to 7.6% in 2006. The very sickest beneficiaries reported no reduction, but fewer reported forgoing other necessities to pay for medicine. A parallel study found that Part D beneficiaries skip doses or switch to cheaper drugs and that many do not understand the program. Further studies by the same group of researchers found that the net impact among beneficiaries was a decrease in the use of generic drugs. A further study concludes that although a substantial reduction in out-of-pocket costs and a moderate increase in utilization among Medicare beneficiaries during the first year after Part D, there was no evidence of improvement in emergency department use, hospitalizations, or preference-based health utility for those eligible for Part D during its first year of implementation. It was also found that there were no significant changes in trends in the dual eligibles' out-of-pocket expenditures, total monthly expenditures, pill-days, or total number of prescriptions due to Part D. A 2020 study found that Medicare Part D led to a sharp reduction in the number of people over the age of 65 who worked full-time. The authors say that this is evidence that before the change, people avoided retiring in order to maintain employer-based health insurance. == Criticisms ==

The federal government is not permitted to negotiate Part D drug prices with drug companies, as federal agencies do in other programs. Numerous critics view this as a mismanagement of taxpayer funds, whereas proponents contend that allowing price negotiation might inhibit innovation by reducing profits for pharmaceutical companies. The Department of Veterans Affairs, which is allowed to negotiate drug prices and establish a formulary, has been estimated to pay between 40% and 58% less for drugs, on average, than Part D. On the other hand, the VA only covers about half the brands that a typical Part D plan covers. Part of the issue is that Medicare does not pay for Part D drugs, and so has no actual leverage. Part D drug providers are using the private insurer leverage, which is generally a larger block of consumers than the 40 million or so actually using Medicare parts A and B for medical care. Estimating how much money could be saved if Medicare had been allowed to negotiate drug prices, economist Dean Baker gives a "most conservative high-cost scenario" of $332 billion between 2006 and 2013 (approximately $50 billion a year). Economist Joseph Stiglitz in his book entitled The Price of Inequality estimated a "middle-cost scenario" of $563 billion in savings "for the same budget window". Former Congressman Billy Tauzin, R–La., who steered the bill through the House, retired soon after and took a $2 million a year job as president of Pharmaceutical Research and Manufacturers of America (PhRMA), the main industry lobbying group. Medicare boss Thomas Scully, who threatened to fire Medicare Chief Actuary Richard Foster if he reported how much the bill would actually cost, was negotiating for a new job as a pharmaceutical lobbyist as the bill was working through Congress. 14 congressional aides quit their jobs to work for related lobbies immediately after the bill's passage. In response, free-market think tank Manhattan Institute issued a report by professor Frank Lichtenberg that said the VA National Formulary excludes many new drugs. Only 38% of drugs approved in the 1990s and 19% of the drugs approved since 2000 were on the formulary. In 2012, the plan required Medicare beneficiaries whose total drug costs reach $2,930 to pay 100% of prescription costs until $4,700 is spent out of pocket. (The actual threshold amounts change year-to-year and plan-by-plan, and many plans offered limited coverage during this phase.) While this coverage gap does not affect the majority of program participants, about 25% of beneficiaries enrolled in standard plans find themselves in this gap. As a candidate, Barack Obama proposed "closing the 'doughnut hole'" and subsequently proposed a plan to reduce costs for recipients from 100% to 50% of these expenses. The cost of the plan would be borne by drug manufacturers for name-brand drugs and by the government for generics. == See also ==