Choosing a Medicare Part D Prescription Plan

Medicare Part D provides a prescription drug benefit that’s separate from traditional Medicare Parts A and B. You can enroll in Part D through standalone prescription drug plans (PDPs) or Medicare Advantage plans that include coverage for prescription drugs.

Medicare Part D provides crucial coverage for medications. It helps Medicare beneficiaries avoid paying high drug costs. Understanding Medicare Part D plans and how they work can help you make an informed choice when choosing a plan. Keep reading to learn more.

If you need help understanding plan options or denials, targeted legal advice is available. A healthcare attorney in your area can explain your rights and guide you through Medicare’s requirements.

What Is a Medicare Part D Plan?

Medicare Part D fills a gap in traditional Medicare coverage by providing prescription drug benefits. Everyone with Medicare has the option to add this coverage through insurance companies and other private companies approved by Medicare.

Part D works together with your other Medicare coverage. If you have Original Medicare (Parts A and B), adding Part D gives you comprehensive coverage. If you choose Medicare Advantage (Part C), most plans already include prescription drug coverage.

Types of Medicare Prescription Drug Plans

There are two basic types of Medicare Part D prescription plans. Let’s take a look at each one to see what they offer:

Prescription Drug Plans (PDPs)

PDPs are stand-alone programs that focus on and cover prescription drugs only, as opposed to other healthcare needs. People who already have Original Medicare (Part A or B) typically choose PDPs.

Advantage Plans with Prescription Coverage (MA-PDs)

MA-PDs are Medicare Advantage Plans that also cover prescription drugs. They come in four types: HMOs, PPOs, PFFS, and Special Needs Plans (which are only for very specific groups of people). These are managed care programs that often require you to use certain doctors and hospitals, but offer lower costs.

The type of plan you choose will be based on the amount of money you can spend and the type of coverage you need. Take the time to do your research and find the best plan for you.

Eligibility for Medicare Part D Prescription Plans

If you’re eligible for Medicare Part A (hospital coverage) or Part B (medical insurance), you are also eligible for Medicare Part D. Part D benefits work together with your other Medicare coverage.

If you have Original Medicare (Parts A and B), adding Part D gives you coverage for medications. If you choose Medicare Advantage (Part C), most plans already include prescription drug coverage. Traditional Medicare plans often don’t cover the costs of medications.

General eligibility for Medicare benefits starts when you reach 65 years old. However, you can enroll three months before your 65th birthday. There are also instances where enrollees under 65 years old can qualify for Medicare. You may be eligible for Medicare under age 65 if you have:

• A disability
• End Stage Renal Disease (ESRD)
• ALS (amyotrophic lateral sclerosis)

In most cases, you can only make changes to your Medicare drug plan during the annual enrollment period (October 15-December 7). Certain qualifying events create special enrollment periods where changes are permitted.

If you are facing issues related to Medicare or need help in understanding prescription drug coverage, you are not alone. An attorney near you can help ensure you are getting the coverage that you are entitled to under federal healthcare laws.

Features of Medicare Part D

Each Part D plan’s formulary (covered prescription drugs) provides a list of medications it covers. The list will tell you the name of the drug it covers and how much your copay is.

If the medication is not on the list, you may be responsible for the costs for that medication. You also have the option to use a drug plan that covers it. Although there are options to apply for an exception to cover the medication you have, it is best that you pick a plan that covers your existing medication.

Changes to Medicare Part D Coverage in 2026

In 2026, Medicare Part D continues the major reforms introduced under the Inflation Reduction Act (IRA), including the simplified benefit structure and the $2,000 annual cap on out‑of‑pocket prescription drug spending. Federal regulators estimate that these changes will keep average annual drug costs significantly lower for beneficiaries. Some people may see reductions of around 30% depending on their medication.

The benefit maintains a three‑phase structure designed to make prescription drug costs more predictable throughout the year:

• Deductible phase: You pay the full cost of your medications until you meet your plan’s deductible, which varies by plan.
• Initial coverage phase: After meeting the deductible, you pay a portion of your medication costs while your plan covers the rest. This phase continues until your total out‑of‑pocket spending reaches $2,000.
• Catastrophic (no‑cost) phase: Once you reach $2,000 in out‑of‑pocket spending, you pay nothing for covered prescription drugs for the remainder of the year.

Knowing your deductibles can help you figure out what you’ll end up paying out of pocket.

Choosing a New Medicare Part D Plan

Picking a plan can seem like a monumental task. But some simple questions can help you determine the type of plan that best meets your needs. Ask yourself:

• How much does the plan cost?
• What drugs does the plan cover, including brand name drugs or generic drugs?
• What are your existing health and outpatient medication needs?
• What is your existing insurance coverage?
• Do you have specific hospitals, doctors, or pharmacy networks you wish to use?

People often choose the cheapest Part D plan without checking if it covers the specific medication they take, which could lead to higher costs later. Part D plans have drug lists that you should check before enrollment. Keep in mind that you cannot switch plans during the year. Changes are only permitted during the enrollment period. Medicare can also deny coverage of drugs not included in your plan.

If the drugs you take now are currently covered under your existing plan or you don’t take any prescription drugs, you should still consider a Medicare Part D prescription plan. In many cases, Medicare will let you keep your existing prescription drug plan or offer you alternatives. Deciding to enroll at a later date may get you penalized. It pays to explore your eligibility for Part D even if you’re currently covered or don’t need it.

Costs of Medicare Part D Prescription Plans

Medicare Part D plan comes with three primary costs:

Monthly Premiums

Most plans charge a monthly premium from the insurance company, and the amount varies depending on the plan.

Yearly Deductibles

You will have to pay for a yearly deductible before your plan coverage covers costs.

Copayments

Each time you fill a prescription, you may have to pay a fixed copayment. Coinsurance medication costs are generally higher, like 25% of the cost of the medication.

You can offset these payments if you qualify for extra help. Visit the Medicare website for additional information.

Getting Medicare Part D Costs Waived

If your income falls below a certain level, you may qualify for Extra Help. Extra Help is a low-income subsidy that assists qualified individuals in paying for their Medicare Part D premiums, deductibles, and coinsurance costs.

You automatically qualify for this assistance program if you:

• Have Medicaid coverage
• Receive assistance from your state in paying your Part B premiums, such as Medicare Savings Programs
• You receive Supplemental Security Income (SSI) from Social Security

The federal government reviews eligibility for Extra Help yearly. To get Extra Help, you must have income and resources below a certain amount. 2026 income caps are $23,940 for individuals and $32,460 for married couples.

With Extra Help, you will pay no greater than $12.65 in 2026 for every brand-name medication that your Medicare drug plan covers. Once your total prescription drug costs reach the $2,100 out-of-pocket maximum, you are no longer required to pay for the covered medications. The government also waives the Part D late enrollment penalty if you are receiving Extra Help.

Need More Help Choosing a Plan? Contact an Attorney

When choosing Medicare prescription drug coverage, take note of the medications that you take. You should also consider other factors such as your health conditions, medical history, and the medical services you might need from healthcare providers. 

If you need help in understanding Medicare regulations or have issues related to the denial of coverage, talk to a healthcare lawyer. They can help you navigate the Medicare plans and ensure you are getting the right Medicare coverage.

FindLaw’s directory of healthcare attorneys can get you started. Enter your city or ZIP code for a list of qualified legal professionals near you. Because your state’s laws are relevant, your attorney should be licensed in your state. Your search results will also show important details about prospective attorneys, like ratings and whether they offer free case evaluations. 

For other questions, you can also contact the official Medicare helpline at 1-800-MEDICARE (1-800-633-4227) or visit Medicare.gov.