New to Part D and Extra Help? Start Here
Part D and Extra Help: the few things that matter most, and the mistakes that catch people out early.
Medicare prescription drug coverage (Part D) and the Extra Help program that lowers drug costs for people with limited income and resources.
Key takeaways
- How you get Part D: through a stand-alone drug plan or a Medicare Advantage plan with drug coverage
- Yearly cap: Part D out-of-pocket drug costs are capped each year; the cap was $2,000 in 2025 and is adjusted yearly
- Most useful single change: Compare plans every fall using the Medicare Plan Finder with your exact drug list.
- Commonest mistake: Skipping Part D when you first become eligible without other creditable coverage.
- See a doctor if any of the signs under "When to speak to a doctor" below apply to you.
Why bother
Drug costs are a major expense for many older adults, and many people who qualify for Extra Help never apply.
Start here
These two first. Everything else is easier once they are habit.
- Compare plans every fall using the Medicare Plan Finder with your exact drug list
- Apply for Extra Help through Social Security if your income is limited
Then add these
The next additions, when you are ready for them.
- Ask about the Medicare Prescription Payment Plan to spread drug costs across the year
- Ask your pharmacist whether a generic or preferred-tier drug would work for you
The numbers, in one place
| Measure | Figure |
|---|---|
| How you get Part D | through a stand-alone drug plan or a Medicare Advantage plan with drug coverage |
| Yearly cap | Part D out-of-pocket drug costs are capped each year; the cap was $2,000 in 2025 and is adjusted yearly |
| Insulin | covered insulin costs no more than $35 for a month's supply |
| Extra Help | helps pay Part D premiums, deductibles and copays |
| Automatic Extra Help | people with full Medicaid, SSI or a Medicare Savings Program qualify automatically |
| Late penalty | may apply if you go without creditable drug coverage for 63 days or more after you are first eligible |
Common early mistakes
- Skipping Part D when you first become eligible without other creditable coverage
- Staying in the same plan year after year without checking costs for your medicines
- Stopping a medicine because of cost without talking to your doctor
Related topics
- Lowering Prescription Costs: What Published Guidance Supports (Health Insurance and Costs)
- What the Guidance Really Says About Benefits and Financial Support (Long-Term Conditions)
- The Evidence on Travel Insurance and Healthcare Abroad, Without the Hype (Travel Health)
- Annual Wellness Visit: What the Evidence Actually Says (Preventive Care)
Where to go next
- Part D and Extra Help: The Practical To-Do List
- Part D and Extra Help: Separating Myth From Guidance
- Part D and Extra Help — the reference entry
- Medicare and Medicaid: The Complete Guide
- Medicare Enrollment Periods: What the Evidence Actually Says
- The Evidence on Medigap Policies, Without the Hype
When to speak to a doctor
Tell your doctor or pharmacist if you cannot afford a prescription before you stop taking it, since some medicines are dangerous to stop suddenly. Call 911 for a medical emergency and Poison Control at 1-800-222-1222 for a medicine overdose.
Where this comes from
- Medicare.gov — How Medicare drug coverage works
- Medicare.gov — Help with drug costs
How this page was put together
Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarized or generalized beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.
Medical disclaimer
This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to your doctor, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 911.
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