Medicare
In short: Medicare is federal health insurance for people 65 and over and for some younger people with disabilities. It has four parts: A (hospital), B (doctors and outpatient care), C (Medicare Advantage plans from private companies) and D (drugs). Most people pay no premium for Part A. Part B costs $202.90 a month in 2026 for most people . Signing up late can cost you a penalty for life.
Who can get it
- You are 65 or older and a U.S. citizen, or a lawful permanent resident who has lived in the U.S. for 5 years in a row.
- You are under 65 and have received Social Security or Railroad Retirement disability benefits for 24 months.
- You have end-stage kidney disease or ALS (Lou Gehrig’s disease).
You get Part A without a premium if you or your spouse worked and paid Medicare taxes for about 10 years. If not, you can buy Part A. See Part A.
The parts of Medicare
| Part | What it covers | Main cost in 2026 |
|---|---|---|
| A | Hospital stays, skilled nursing care after a hospital stay, hospice, some home health care | Usually no premium. Deductible $1,736 per benefit period |
| B | Doctors, outpatient care, tests, preventive care, medical equipment | Premium $202.90 a month, deductible $283 a year, then usually 20% |
| C | Medicare Advantage: private plans that replace A and B, often with drug coverage | Varies by plan |
| D | Prescription drugs, from private plans | Varies by plan. Out-of-pocket drug costs capped at $2,100 a year |
Original Medicare is Parts A and B. You can see any doctor who takes Medicare. Many people add a Part D drug plan and a Medigap policy.
Medicare Advantage (Part C) plans are run by private companies approved by Medicare. They usually have a network of doctors and a yearly limit on what you pay.
When to sign up
- Initial Enrollment Period: 7 months. It starts 3 months before the month you turn 65 and ends 3 months after it. Sign up in the first 3 months so coverage starts on time.
- Automatic enrollment: if you already get Social Security when you turn 65, you are signed up for Parts A and B automatically and your card arrives by mail.
- If you or your spouse still work: if you have health insurance through a current employer, you may be able to delay Part B without penalty. You then have 8 months after the job or the coverage ends to sign up.
- General Enrollment Period: January 1 to March 31 each year, if you missed your first chance. Coverage starts the month after you sign up.
- Open Enrollment: October 15 to December 7 each year, to join, switch or drop a Medicare Advantage or drug plan. Changes start January 1.
Late penalties
- Part B: 10% added to your premium for each full 12 months you could have had Part B but did not. You usually pay it for as long as you have Part B.
- Part D: see Part D.
- Part A (if you must buy it): 10% for twice the number of years you were late.
Help paying for Medicare
- Medicare Savings Programs pay Part B premiums, and sometimes deductibles and copays, for people with limited income. Rules vary by state.
- Extra Help lowers drug costs.
- Higher incomes pay more for Parts B and D. See Part B.
How to sign up
- Online: ssa.gov/medicare/sign-up (for people 65 and over).
- By phone: Social Security at 1-800-772-1213 (TTY 1-800-325-0778), Monday to Friday, 8 a.m. to 7 p.m. local time. Ask for a free interpreter if you need one.
- In person: find your Social Security office at ssa.gov/locator.
Questions about coverage and plans: 1-800-MEDICARE (1-800-633-4227, TTY 1-877-486-2048), 24 hours a day, 7 days a week. Interpreters are available.
Free, unbiased counseling: your State Health Insurance Assistance Program (SHIP) at shiphelp.org or 877-839-2675.
Be careful
- Medicare will not call you to ask for your Medicare number. Do not give it to callers.
- Advertisements for plans come from companies that are paid to sell them. A SHIP counselor gives free advice with no sales interest.
Related programs
- Medicare Part A (hospital insurance)
- Medicare Part B (medical insurance)
- Medicare Part D (drug coverage)
- Medigap (Medicare Supplement Insurance)
- Extra Help with Medicare drug costs
Sources
- cms.gov/newsroom/fact-sheets/2026-medicare-parts-b-premiums-deductibles · checked 2026-10-12
- medicare.gov/health-drug-plans/part-d/basics/costs · checked 2026-10-12
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