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Medicare Part D: Understanding Medicare Drug Coverage

Learn more about Medicare Part D in this guide, covering eligibility, enrollment, coverage, costs, and assistance programs.
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Managing multiple prescriptions can be a complex task, especially for family caregivers. Let us help you navigate Medicare Part D. This article focuses on Medicare Part D, the prescription drug benefit program. We'll explain its coverage, costs, and enrollment processes and discuss how to leverage Part D so your loved one receives the medications they need to stay healthy and lead a full life.

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What is Medicare Part D?

Medicare Part D is a federal program that provides prescription drug coverage to Medicare beneficiaries. It was established under the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 and began offering benefits in 2006. Medicare Part D is designed to help individuals manage the costs of their prescription medications, making them more affordable and accessible.

Covered drugs under Medicare Part D

Medicare Part D plans cover a wide range of prescription drugs, including:

  • Brand-name and generic drugs: Both medications are included, providing options for cost-effective treatments.
  • Common therapeutic categories: Plans must cover drugs in at least two drugs in each therapeutic category and class. This ensures that beneficiaries have access to necessary treatments across various conditions, such as:
    • Antidepressants
    • Antipsychotics
    • Anticonvulsants
    • Immunosuppressants
    • Antiretrovirals (for HIV/AIDS)
    • Anticancer medications

Each Medicare Part D plan has a formulary and a list of covered drugs. The formulary is divided into tiers, each representing different cost levels. Typically, generic drugs are in the lower tiers with lower copayments, while brand-name and specialty drugs are in higher tiers with higher copayments or coinsurance.

Excluded drugs and limitations

While Medicare Part D covers a broad spectrum of prescription medications, some specific drugs and categories are generally excluded from coverage. These exclusions include:

  • Non-prescription drugs: Over-the-counter medications are not covered.
  • Drugs for anorexia, weight loss, or weight gain: These are excluded unless prescribed for specific medical conditions.
  • Fertility drugs: Medications related to fertility treatments are not covered.
  • Cosmetic or lifestyle drugs: Drugs for cosmetic purposes or lifestyle enhancements, such as hair growth or erectile dysfunction (except when medically necessary), are not included.
  • Cough and cold medications: Over-the-counter cough and cold remedies are not covered.
  • Vitamins and minerals: These are generally excluded except for specific types like prenatal vitamins and fluoride preparations.
  • Drugs covered under Part A or Part B: If a medication is covered under Medicare Part A (hospital insurance) or Medicare Part B (medical insurance), it will not be covered under Part D. For example, drugs administered in a hospital or doctor's office are covered by Part A or Part B.

In addition to these exclusions, Medicare Part D plans may have other limitations, such as:

  • Prior authorization: Some drugs require prior approval from the plan before they are covered.
  • Quantity limits: There may be restrictions on the amount of a drug you can receive within a certain period.
  • Step therapy: Plans may require you to try a lower-cost drug before they cover a more expensive one.
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Eligibility and enrollment

Medicare Part D is a federal program that helps cover the prescription drug costs for Medicare beneficiaries. Understanding the eligibility criteria and enrollment periods is crucial to ensure you receive the benefits without penalties.

Eligibility for Medicare Part D

Medicare Part D is available to anyone eligible for Medicare. To qualify for Medicare Part D, you must:

  • Be enrolled in Medicare Part A and/or Part B.
  • Live in the service area of a Medicare Part D plan.

Eligibility is not based on income or health status, meaning you can enroll in a Part D plan as long as you meet the basic Medicare requirements.

Initial Enrollment Period (IEP)

The Initial Enrollment Period (IEP) is the first opportunity for individuals to enroll in Medicare Part D. It begins three months before you turn 65, includes the month of your 65th birthday, and ends three months after that month. For example, if your birthday is in June, your IEP runs from March 1 to September 30.

If you qualify for Medicare due to a disability, your IEP is slightly different. It starts three months before your 25th month of disability benefits from Social Security or the Railroad Retirement Board and lasts seven months.

Special Enrollment Period (SEP)

The Special Enrollment Period (SEP) allows individuals to enroll in or change their Medicare Part D plan outside the regular enrollment periods under certain circumstances. SEPs can occur if:

  • You move out of your plan's service area.
  • You lose other credible prescription drug coverage.
  • You live in an institution like a nursing home.
  • You qualify for Extra Help due to your low income and lack of resources.

These are just a few examples; various situations may qualify you for a SEP, which will allow you to avoid late enrollment penalties and ensure continuous coverage.

Annual Open Enrollment Period (AEP)

The Annual Open Enrollment Period (AEP) occurs every year from October 15 to December 7. During this period, you can:

  • Enroll in a Medicare Part D plan if you did not do so during your IEP.
  • Switch from one Part D plan to another.
  • Drop Medicare Part D coverage entirely.

Changes made during the AEP take effect on January 1 of the following year. This period allows you to review your current plan and make changes if your medication needs have changed or if you find a plan that better suits your needs.

Types of drug plans

Medicare Part D offers two primary types of prescription drug coverage plans to help beneficiaries manage the cost of their medications: Stand-Alone Prescription Drug Plans (PDPs) and Medicare Advantage Prescription Drug (MA-PD) plans. Understanding the differences between these options can help you choose the one that best meets your needs.

Stand-alone prescription drug plans (PDPs)

Stand-Alone Prescription Drug Plans (PDPs) are designed for individuals with Original Medicare (Part A and Part B) but do not include drug coverage in their health plan. Here are the key features of PDPs:

  • Coverage: PDPs specifically cover prescription medications. They do not provide any other health benefits.
  • Enrollment: Beneficiaries with Original Medicare can enroll in a PDP to add drug coverage.
  • Choice: You can choose a PDP that works best with your existing Medicare coverage. Each PDP has its own formulary (list of covered drugs) and may have different costs and coverage rules.
  • Premiums and costs: PDPs require a separate monthly premium from the premiums you pay for Medicare Part A and Part B. Depending on the plan, you may also have copayments, coinsurance, and an annual deductible.

PDPs are a good choice for those who prefer to keep their drug coverage separate from their medical coverage and want flexibility in selecting a plan that suits their specific medication needs.

Medicare Advantage prescription drug (MA-PD) plans

Medicare Advantage Prescription Drug (MA-PD) plans are an alternative way to receive Medicare benefits. These plans are offered by private insurance companies approved by Medicare and combine health coverage with prescription drug coverage. Here are the main aspects of MA-PD plans:

  • Comprehensive coverage: MA-PD plans include all the benefits of Medicare Part A (hospital insurance), Part B (medical insurance), and Part D prescription drug coverage. Many MA-PD plans also offer additional benefits like vision, dental, and hearing coverage.
  • Enrollment: To enroll in an MA-PD plan, you must first enroll in Medicare Part A and B. You then choose a Medicare Advantage plan that includes drug coverage.
  • Network restrictions: MA-PD plans often have network restrictions, meaning you may need to use specific doctors, hospitals, and pharmacies for the lowest costs. Some plans require referrals to see specialists.
  • Premiums and costs: MA-PD plans typically have a monthly premium, including medical and prescription drug coverage. This premium can vary widely among plans. In addition to the premium, you may have copayments, coinsurance, and deductibles for medical and prescription services.

MA-PD plans are ideal for those who prefer a single plan that consolidates their health and drug coverage and are comfortable using a network of health care providers. These plans can be convenient and may offer additional benefits beyond what Original Medicare provides.

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Costs of Medicare Part D

Medicare Part D helps cover the cost of prescription drugs, but understanding the various cost components is essential for managing your expenses. Here are the primary cost elements associated with Medicare Part D plans:

Deductible

The deductible is the amount you must pay out of pocket for your prescriptions before your Medicare Part D plan starts to share the costs. The deductible can vary by plan; some plans may have lower or no deductible. Once you meet your deductible, you enter the initial coverage phase.

Initial coverage phase

During the initial coverage phase, you share the cost of your prescriptions with your plan through copayments or coinsurance. The specifics of this phase include:

  • Copayments: A fixed amount you pay for each prescription, such as $10 for a generic drug.
  • Coinsurance: A percentage of the cost of the drug, such as 25%.

This phase continues until the total cost of your drugs (including both your payments and the plan's payments) reaches a specified limit, which is $5,030 in 2024. After reaching the initial coverage limit, you enter the coverage gap known as the donut hole.

Coverage gap (donut hole)

The coverage gap, or donut hole, is a temporary limit on what the drug plan will cover for your prescriptions. In this phase:

  • You pay 25% of the cost for both brand-name and generic drugs.
  • The manufacturer discount for brand-name drugs counts toward your out-of-pocket costs.

In 2024, you enter the coverage gap phase after your total drug costs reach $5,030. You remain in the coverage gap until your out-of-pocket costs reach $8,000. This includes your deductible, copayments, coinsurance, and the drug manufacturer discount on brand-name drugs.

Catastrophic coverage

Once your out-of-pocket costs reach $8,000 in 2024, you enter the catastrophic coverage phase. In this phase:

  • You pay a small coinsurance or copayment for each prescription for the rest of the year.
  • Your plan pays the majority of the cost of your drugs.

The catastrophic coverage phase significantly reduces out-of-pocket expenses, ensuring you are not burdened with high prescription costs for the remainder of the year.

Medicare savings programs and cost-sharing subsidies

Medicare Savings Programs (MSPs) and cost-sharing subsidies like the Extra Help program are designed to assist individuals with limited income and resources manage their Medicare-related expenses. These programs can significantly reduce the cost burden of Medicare Part D and other Medicare costs.

Extra Help Program

The Extra Help program, or the Low-Income Subsidy (LIS), is a federal program that helps individuals with limited income and resources pay for Medicare Part D prescription drug costs.

  • Eligibility: To qualify for Extra Help, your income and resources must fall below certain thresholds. Resources include savings, stocks, and bonds, but not your home or car.
  • Benefits: Extra Help can cover part or all of your Medicare Part D premiums, deductibles, and copayments. It can also reduce the cost of your prescriptions.
  • Automatic qualification: You may automatically qualify for Extra Help if you have full Medicaid coverage, receive Supplemental Security Income (SSI), or participate in a Medicare Savings Program.

Applying for Extra Help is straightforward. You can apply online through the Social Security Administration's website, by phone, or by visiting your local Social Security office.

Medicare Savings Programs (MSPs)

Medicare Savings Programs (MSPs) are state-run programs that help individuals with limited income and resources pay for Medicare premiums, deductibles, coinsurance, and copayments. There are four main types of MSPs:

Qualified Medicare Beneficiary (QMB) Program
  • Eligibility: Individuals with an income at or below 100% of the federal poverty level (FPL) and limited resources.
  • Benefits: Covers Medicare Part A and Part B premiums, deductibles, coinsurance, and copayments.
Specified Low-Income Medicare Beneficiary (SLMB) Program:
  • Eligibility: Individuals with an income between 100% and 120% of the FPL and limited resources.
  • Benefits: Pays for Medicare Part B premiums.
Qualifying Individual (QI) Program:
  • Eligibility: Individuals with an income between 120% and 135% of the FPL and limited resources. You must apply each year, and assistance is granted on a first-come, first-served basis.
  • Benefits: Pays for Medicare Part B premiums.
Qualified Disabled and Working Individuals (QDWI) Program:
  • Eligibility: Individuals with a disability who work and have an income up to 200% of the FPL and limited resources.
  • Benefits: Pays for Medicare Part A premiums.

Applying for Medicare Savings Programs

To apply for an MSP, contact your state's Medicaid office. The application process typically requires proof of income and resources. Each state has its own rules and forms, so it's essential to check the specific requirements for your state.

Benefits of MSPs and Extra Help

The Extra Help and Medicare Savings Programs provide significant financial relief to eligible individuals. By reducing or eliminating premiums, deductibles, and copayments, these programs make Medicare more affordable and accessible. They ensure that low-income beneficiaries receive the medical care and prescription medications they need without undue financial hardship.

Choosing the best plan for your family

When selecting a Part D plan, there are a few things to remember. First, make sure that the plan covers all the medications your relative currently takes, and consider any future needs they may have. Compare the costs of medications within different tiers, especially for drugs your loved one takes regularly. Additionally, you'll want to balance the monthly premiums with the level of coverage offered by the plan.

Another factor to consider is the network of pharmacies the plan works with. Choose a plan with conveniently located pharmacies for your care recipient. 

Use the Medicare website's helpful Medicare Plan Finder tool to compare and select the best plan. Contact insurance companies for more detailed plan information and speak with a licensed agent. Feel free to ask the insurance representative questions about plan details and medication coverage.

Enrollment changes and periods

Like other Medicare parts, your Part D enrollment changes can be made during the Open Enrollment Period (October 15 to December 7). Special Enrollment Periods may allow for plan changes outside this window due to qualifying life events (e.g., a change in medications requiring a different formulary).

Family caregivers: Leveraging the power of Part D

Understanding Part D not only equips family caregivers with the knowledge to guarantee their loved ones access to needed medications but also empowers them to compare plans and manage costs. By becoming a more informed advocate, you can conquer the often-confusing world of prescription drug coverage, bringing relief and control to your caregiving journey. 

Remember, proactive planning and informed decision-making make an incredible difference in your loved one's overall health and quality of life. So, take a deep breath and use this knowledge to confidently navigate the path toward optimal medication management for your loved one.

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