Medicare Basics

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What is Medicare?

Medicare is a federal government program that provides health insurance to people age 65 and over. To be eligible, you must be a U.S. Citizens or permanent legal resident with at least five years of continuous residence. Younger people who have received Social Security Disability Insurance (SSDI) benefits for 24 months also qualify. Additionally, people with End Stage Renal Disease (ESRD) or Amyotrophic Lateral Sclerosis (ALS) are eligible for Medicare benefits as soon as they are eligible for SSDI without having to wait 24 months. 53 million people currently have Medicare coverage.

IMPORTANT: Medicare premiums will increase in 2017. Because there will be a 0.3% cost of living increase (COLA) for Social Security benefits in 2017, all Medicare premiums and deductions will increase as well. The good news is that the Medicare premium increases will be just as minimal as the Social Security cost of living increase. This will save those that deduct Medicare premiums from their Social Security benefit from receiving a smaller monthly check. For those that pay Medicare premiums directly, the increases will vary by plan and income level. More information on 2017 premiums is below. 

If you are eligible for Medicare, your coverage includes:

  • Part A: Hospital Insurance – Part A covers inpatient hospital care, skilled nursing facilities and some home health care. Most people do not have to pay a monthly premium for Part A coverage. Part A does have an annual deductible and additional co-payments. The annual deductible for 2017 is $1,316 (an increase of $28 from 2016).
  • Part B: Medical Insurance – Part B, the Supplementary Medical Insurance (SMI) program, covers doctor visits (but not routine exams), medically necessary supplies and equipment, physical and occupational therapy, outpatient mental health services and other outpatient hospital services. Part B coverage also includes certain preventive benefits like mammograms and cardiovascular screenings. While Part B is an optional program, most people enroll when first eligible as there are higher premium costs for those enrolling later.

Part B has a monthly premium that is deducted from Social Security, Civil Service, Railroad Retirement benefits or is paid directly each quarter for those eligible for Medicare who are not receiving Social Security benefits. Your premium is based on income.

For those whowere receiving Social Security benefits in 2016 (and the premium was being deducted from your Social Security benefit), the monthly 2017 premium for Part B is $109.00 for those whose income is less than $85,000 (or $170,000 for beneficiaries who file joint tax return). This is only a $4.10 increase from the 2016 premium.

For most beneficiaries whose eligibility for Medicare began in 2017 or whose premium is not being deducted from Social Security benefits, the 2017 premium is $134.00. (10% increase from 2016.) Higher income seniors pay an even higher premium. Depending on their income, 2017 premiums will range from $187.50 to $428.60. The Centers for Medicare & Medicaid Services (CMS) has information on their website ( about premium rates for those with higher incomes. There is also an annual deductible, which in 2017 is $183.00 (up from $166.00 in 2016). Co-payments also apply to most Part B services.

If you have experienced a "life changing event," such as death of a spouse, divorce or retirement in the past 2 years and your income has decreased, you might be eligible for relief. Read more about what qualifies as a life-changing event in the Social Security Administration's publication Medicare Premiums: Rules for Higher-Income Beneficiaries at

  • Part C: Medicare Advantage - Part C allows Medicare beneficiaries to enroll in private plan, such as a Health Maintenance Organization (HMO) or Preferred Provider Organization (PPO). You must be entitled to Part A and enrolled in Part B. In addition to the Part B premium, you usually pay one monthly premium for the service included in a Part C plan. Part C plans receive payments from Medicare to provide all Medicare covered benefits including hospital and physician services and, in most cases, prescription drug benefits. In 2015, 15.7 million Medicare beneficiaries were enrolled in a Medicare Advantage plan.

  • Part D: Prescription Drugs - Part D is an optional program, requiring a separate enrollment if you want to receive coverage for prescription drugs. Part D is offered through private insurance plans that contract with Medicare. Part D plans also have a monthly premium and an annual deductible before the plan will pick up the cost of your prescriptions. Plans vary, but in general beneficiaries are responsible for 25% drug costs and there is a deductible which in 2017 may not exceed $400. Once both you and your plan have spent $3,700 in drug costs, you enter a coverage gap (commonly known as the doughnut hole). At this point, you are responsible for paying a larger share of prescription drug costs. Once you have paid $4,950 in prescription drug costs out-of-pocket, your plan will pick up coverage again. Under the Affordable Care Act, the doughnut hole will be phased out in 2020. In 2015, an estimated 42 million beneficiaries were enrolled in Part D.


What is not covered?

Medicare does not cover most long-term care and covers only limited home health care and nursing home costs, usually following a hospital stay. It also does not cover routine dental care, eye care, or hearing aids.

Who is eligible for Medicare?

Generally, individuals are automatically entitled to Medicare if:

  • they are 65 years old and have 40 quarters of work credit in covered employment, or
  • their spouse is eligible for Medicare.

Government employees are also covered if:

  • they are 65 and
  • they or their spouse worked in Medicare-covered employment.


Younger individuals may qualify for coverage if they receive Social Security Disability benefits or have end stage renal disease. Also, individuals without the required 40 quarters of covered employment may buy into Medicare Part A and pay a monthly premium, and also have the option of enrolling in Part B.


When am I automatically enrolled?

If you are not 65 yet, but are already receiving Social Security retirement or disability benefits, you will be automatically enrolled in Part A and will have the opportunity to enroll in Part B in the month you turn 65 or after 24 months of receiving disability benefits. You will receive a Medicare Initial Enrollment Period package three months before your 65th birthday.

When do I need to apply?

  • If you are approaching age 65 and not receiving Social Security benefits, you must contact Social Security to apply for Medicare benefits. You will not get Medicare information sent to you automatically.
  • The open period to apply for Medicare is 3 months prior to your 65th birthday, the month of your 65th birthday and 3 months after your 65th birthday. For example if your birthday is on June 1, you will have from March 1-September 1 to apply. Social Security recommends applying 3 months before you turn 65.
  • There is a penalty for delaying enrollment in Part B. Your monthly premium for Part B may go up 10% for each full 12-month period that you were eligible and could have enrolled in Part B but didn't. However, the penalty does not apply if you delayed enrollment because you were actively employed and covered in a workplace plan or covered by an employed spouse's workplace plan. If you are working past age 65 and have health coverage from an employer, you should consult with your employers' benefit administrator about your health coverage options.

What can I do if my income is very limited and I can't afford the premiums, co-payments and deductibles?

Medicare Savings Programs (MSPs), also called Medicare buy-in programs, provide financial assistance to Medicare eligible individuals with limited finances to help pay for premiums, co-payments, or deductibles. The three main programs are: the Qualified Medicare Beneficiary (QMB), the Specified Low-income Medicare Beneficiary (SLMB), and the Qualifying Individual (QI) Program.

Contact your state agency that administers Medicaid for specific information on each program. States may use different rules to count income and assets when determining eligibility.

Low-income individuals enrolled in a Medicare Part D plan may also be eligible for Extra Help with Medicare Part Prescription Drug Plan Costs. The Social Security Administration (SSA) administers the Extra Help Program. Applications may be made online at or by calling Social Security toll-free at 1-800-772-1213 (TTY 1-800-325-0778).


Where you can go for more information about Medicare:

  • For further information about eligibility or to apply for Medicare, call the Social Security Administration at 1-800-772-1213, visit their website at, or visit your local Social Security office. TTY users should call 1-800-325-0778. If you are newly eligible for Social Security benefits and you want to apply for both Social Security and Medicare you can do it online at
  • For general information about Medicare call 1-800-MEDICARE (633-4227) or go to TTY users should call 1-877-486-2048.
  • Free consumer counseling is available in every state through state programs that are funded by the federal government. These programs, called SHIP programs (Senior Health Insurance Assistance Program) give neutral advice to Medicare beneficiaries and their families about Medicare, Medicaid, private Medigap insurance and Medicare Advantage plans. SHIP counselors may also assist with applying for Medicare Savings Programs and for filing the Extra Help application with SSA. A listing of SHIP programs by state is available at
  • Medicare Rights Center, a non-profit organization that operates a national telephone helpline in order to help callers understand Medicare Benefits, find the right coverage, and understand how any existing coverage works with Medicare. Callers living on low or fixed incomes are also screened for additional programs.  Visit, or call the HELPLINE at 1-800-333-4114.


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