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Signing up for Medicare: what you need to know

Most Americans become eligible for Medicare at age 65, but receiving the right benefits for your needs isn鈥檛 automatic. You need to sign up 鈥� and make some big choices once you do. If you鈥檝e taken a look at the process and feel confused, here鈥檚 an overview of the different parts of Medicare and answers to some of the most common questions pre-retirees have about coverage.

Understanding the different parts of Medicare

If you鈥檙e not already familiar with the four parts of Medicare and what each one covers, here鈥檚 a quick overview. Keep in mind that Parts B, C and D all require monthly premium payments. For a more in-depth look at all parts of Medicare, visit the official .

Part A: Hospital insurance.

This option helps pay for inpatient care at a hospital or time at a skilled nursing facility following a hospital stay, hospice care and some home health care.

Part B: Medical insurance.

This helps pay for certain doctors鈥� services, outpatient care as well as other services and supplies that hospital insurance (Part A) doesn鈥檛 cover. It is optional coverage but late enrollment penalties apply in some situations if you decide to enroll after you鈥檙e first eligible.

Medicare Advantage.

Also referred to as Part C, private companies approved by Medicare offer these plans that typically bundle hospital, medical and prescription drug coverage into one. They are another way to get Medicare Parts A and B coverage, Part D prescription drug benefits and some may include additional benefits for vision, hearing and dental. (Please note that you must have Medicare Parts A and B to enroll.)

Part D: Prescription drug coverage.

Also offered by private companies approved by Medicare, these plans are available for anyone with Parts A and B to help you pay for medications prescribed by your doctor as well as many recommended shots or vaccines. Although this coverage is optional, you may pay a late enrollment penalty for as long as you have Medicare prescription drug coverage if you decide to sign up for it later.

Answers to some of the most common questions pre-retirees have about Medicare

Use this information to sign up at the right time to help get the coverage that鈥檚 best for you. 

Q: When should I enroll?  

A: You can enroll for Medicare as soon as you are first eligible. If you鈥檙e already receiving  Social Security benefits, you are automatically enrolled in Medicare Parts A and B the month you turn 65. But if you aren鈥檛 receiving benefits yet, you will need to sign up during an Initial Enrollment Period around your 65th birthday at your nearest Social Security Administration office or at . If you are covered under an employer鈥檚 group health plan after age 65, you can delay signing up for Parts A, B and D without having to pay late-enrollment penalties.

Q: How do I choose the right coverage for my needs?

A: If you like automated tools, try National Council on Aging鈥檚 (NCOA) Age Well Planner, which poses a series of questions and gives you a report based on your circumstances. The State Health Insurance Assistance Programs (SHIP), which are funded by a federal grant, are another resource that provides free, unbiased Medicare information. Use the online SHIP Locator to find contact information for your state, or you can compare plans on the official .

Q: Are there enrollment deadlines?

A: When you鈥檙e first eligible for Medicare, there is a seven-month Initial Enrollment Period (before, during and after your birthday month) to sign up for Parts A and/or B. After that, you can sign up for Part A for free any time after your Initial Enrollment Period. If you want to enroll in Part B after the Initial Enrollment Period, you can only do that during the General Enrollment Period that runs annually from January 1 to March 31. 

Keep in mind, there are late-enrollment penalties for Medicare Parts A, B and D. If you don鈥檛 qualify for premium-free Part A and choose not to enroll when you鈥檙e first eligible, your monthly premium may go up 10 percent and you'll have to pay the penalty for twice the number of years you didn't sign up. The enrollment penalty for Part B is an extra 10 percent for each year you wait, which you鈥檒l pay for as long as you have Part B. For Part D, the late enrollment penalty is an extra 1 percent for each full month you wait to enroll unless you have creditable coverage.

Q: What does Medicare cost?

A: Most people qualify for premium-free Part A, but there are still out-of-pocket deductibles and coinsurance. In 2024, the standard Part B monthly premium is $174.70 but may be higher for people with a higher income, and there are also deductibles and coinsurance costs associated with Part B. Medicare Advantage Plans (Part C) and prescription drug plans (Part D) are issued by private companies, and the costs vary. 

Q: How can I save on premiums?

A: Shop and compare plans every year during the Open Enrollment Period from October 15 to December 7. You may pay too much if you don鈥檛 switch plans when necessary, as costs and coverage can change every year. There are programs called Extra Help and Medicare Savings Program that can help pay the premiums and costs associated with Medicare (up to a maximum amount) for people who meet the income and asset criteria, which you can find at .

In addition, you should consider taking advantage of Medicare preventive services to get regular screenings and preventive medicine to detect and treat disease early. Medicare pays for flu shots, mammograms, colonoscopies, an annual wellness visit and several other services at no out-of-pocket cost.

For more information about Medicare, and before making an enrollment decision, sign in or create an account at or contact Medicare at 800-MEDICARE.

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Not affiliated or endorsed by the U.S. Centers for Medicare and Medicaid Services or any other government agency.

Except where noted otherwise, the information about Medicare contained herein has been sourced from the U.S. Centers for Medicare and Medicaid Services and their website,, as of November 12, 2024. While substantial effort has been taken to ensure the accuracy of the information presented as of the time of creation, no guarantee is made as to accuracy or completeness. Details of the Medicare program are subject to change at any time without warning. For more information and to gain a better understanding of the range of options and benefits you are entitled to under Medicare, visit . 麻豆传媒 is not responsible for content on the U.S. Centers for Medicare and Medicaid Services鈥� website.