Medicare is the federal health insurance program created in 1965 for people ages 65 and over, regardless of income, medical history, or health status. The program was expanded in 1972 to cover certain people under age 65 who have a long-term disability. Today, Medicare plays a key role in providing health and financial security to 60 million older people and younger people with disabilities. The program helps to pay for many medical care services, including hospitalizations, physician visits, prescription drugs, preventive services, skilled nursing facility and home health care, and hospice care. In 2017, Medicare spending accounted for 15 percent of total federal spending and 20 percent of total national health spending.
Most people ages 65 and over are entitled to Medicare Part A if they or their spouse are eligible for Social Security payments, and do not have to pay a premium for Part A if they paid payroll taxes for 10 or more years. People under age 65 who receive Social Security Disability Insurance (SSDI) payments generally become eligible for Medicare after a two-year waiting period, while those diagnosed with end-stage renal disease (ESRD) and amyotrophic lateral sclerosis (ALS) become eligible for Medicare with no waiting period.
#Medicare plays a key role in providing health and financial security to 60 million older people and younger people with disabilities. It covers many basic health services, including hospital stays, physician services, and prescription drugs.
Characteristics of People on Medicare
Many people on Medicare live with health problems, including multiple chronic conditions and limitations in their activities of daily living, and many beneficiaries live on modest incomes. In 2016, nearly one third (32%) had a functional impairment; one quarter (25%) reported being in fair or poor health; and more than one in five (22%) had five or more chronic conditions, (Figure 1). More than one in seven beneficiaries (15%) were under age 65 and living with a long-term disability, and 12 percent were ages 85 and over. Nearly two million beneficiaries (3%) lived in a long-term care facility. In 2016, half of all people on Medicare had incomes below $26,200 per person and savings below $74,450.
Figure 1: Characteristics of the Medicare Population
What Medicare Covers
Medicare covers many health services, including inpatient and outpatient hospital care, physician services, and prescription drugs (Figure 2). Medicare benefits are organized and paid for in different ways:
Figure 2: Medicare Benefit Payments by Type of Service in 2017
- Part A covers inpatient hospital stays, skilled nursing facility (SNF) stays, some home health visits, and hospice care. Part A benefits are subject to a deductible ($1,364 per benefit period in 2019). Part A also requires coinsurance for extended inpatient hospital and SNF stays.
- Part B covers physician visits, outpatient services, preventive services, and some home health visits. Many Part B benefits are subject to a deductible ($185 in 2019), and, typically, coinsurance of 20 percent. No coinsurance or deductible is charged for an annual wellness visit or for preventive services that are rated ‘A’ or ‘B’ by the U.S. Preventive Services Task Force, such as mammography or prostate cancer screenings.
- Part C refers to the Medicare Advantage program, through which beneficiaries can enroll in a private health plan, such as a health maintenance organization (HMO) or preferred provider organization (PPO), and receive all Medicare-covered Part A and Part B benefits and typically also Part D benefits. Enrollment in Medicare Advantage plans has grown over time, with more than 20 million beneficiaries enrolled in Medicare Advantage in 2018, or 34 percent of all Medicare beneficiaries (Figure 3).
Figure 3: Total Medicare Private Health Plan Enrollment, 1999-2018
- Part D covers outpatient prescription drugs through private plans that contract with Medicare, including stand-alone prescription drug plans (PDPs) and Medicare Advantage plans with prescription drug coverage (MA-PDs). In 2019, beneficiaries have a choice of 27 PDPs and 21 MA-PDs, on average. The Part D benefit helps pay for enrollees’ drug costs and provides coverage for very high drug costs. Additional financial assistance is available for beneficiaries with low incomes and modest assets. Enrollees pay monthly premiums and cost sharing for prescriptions, with costs varying by plan. Enrollment in Part D is voluntary; in 2018, 43 million people on Medicare were enrolled in a PDP or MA-PD. Of this total, roughly one in four receive low-income subsides.
Benefit Gaps and Supplemental Coverage
Medicare provides protection against the costs of many health care services, but traditional Medicare has relatively high deductibles and cost-sharing requirements and places no limit on beneficiaries’ out-of-pocket spending for services covered under Parts A and B. Moreover, traditional Medicare does not pay for some services that are important for older people and people with disabilities, including long-term services and supports, dental services, eyeglasses, and hearing aids. In light of Medicare’s benefit gaps, cost-sharing requirements, and lack of an annual out-of-pocket spending limit, most beneficiaries covered under traditional Medicare have some type of supplemental coverage that helps to cover beneficiaries’ costs and fill the benefit gaps (Figure 4).
Figure 4: Distribution of Types of Supplemental Coverage Among Beneficiaries in Traditional Medicare in 2016
- Employer-sponsored insurance provided retiree health coverage to 3 in 10 (30%) of traditional Medicare beneficiaries in 2016. Over time, however, fewer beneficiaries are expected to have this type of coverage, since the share of large firms offering retiree health benefits to their employees has dropped from 66 percent in 1988 to 18 percent in 2018.
- Medigap, also called Medicare supplement insurance, provided supplemental coverage to nearly 3 in 10 (29%) beneficiaries in traditional Medicare in 2016. These policies are sold by private insurance companies and fully or partially cover Part A and Part B cost-sharing requirements, including deductibles, copayments, and coinsurance.
- Medicaid, the federal-state program that provides coverage to low-income people, was a source of supplemental coverage for more than 1 in 5 (22%, or 7.0 million) traditional Medicare beneficiaries with low incomes and modest assets in 2016 (not including 3.5 million beneficiaries who were enrolled in both Medicare Advantage and Medicaid). These beneficiaries are known as dually eligible beneficiaries because they are eligible for both Medicare and Medicaid. Most traditional Medicare beneficiaries who receive Medicaid (5.3 million) receive both full Medicaid benefits, including long-term services and supports, and payment of their Medicare premiums and cost sharing. Another 1.7 million beneficiaries do not qualify for full Medicaid benefits but Medicaid covers their Medicare premiums and/or cost sharing through the Medicare Savings Programs.
- Nearly 1 in 5 (19%, or 6 million) Medicare beneficiaries with traditional Medicare had no supplemental coverage in 2016. These 6 million beneficiaries are fully exposed to Medicare’s cost-sharing requirements and lack the protection of an annual limit on out-of-pocket spending, unlike beneficiaries enrolled in Medicare Advantage.
In 2018, one-third of all beneficiaries were enrolled in Medicare Advantage plans rather than traditional Medicare, some of whom also have coverage from a former employer/union or Medicaid. Medicare Advantage plans are required to limit beneficiaries’ out-of-pocket spending for in-network services covered under Medicare Parts A and B to no more than $6,700, and may also cover supplemental benefits not covered by Medicare, such as eyeglasses, dental services, and hearing aids.
Medicare Beneficiaries’ Out-of-Pocket Health Care Spending
In 2016, beneficiaries in traditional Medicare and enrolled in both Part A and Part B spent $5,806 out of their own pockets for health care spending, on average (Figure 5). Nearly half (45%) of beneficiaries’ average total spending was for premiums for Medicare and other types of supplemental insurance, and 55 percent was for medical and long-term care services.
Figure 5: Average Out-of-Pocket Spending on Services and Premiums by Traditional Medicare Beneficiaries in 2016
Among different types of services, average per capita spending was highest for long-term care facility services, followed by medical providers and supplies, prescription drugs, and dental services. Out-of-pocket spending rises with age among beneficiaries ages 65 and over and is higher for women than men. Not surprisingly, Medicare beneficiaries with poorer self-reported health status spend more than those who rate themselves in better health.
Medicare Spending Now and In the Future
In 2017, Medicare benefit payments totaled $688 billion; 21 percent was for hospital inpatient services, 14 percent for outpatient prescription drugs, and 10 percent for physician services; 30 percent was for payments to Medicare Advantage plans for services covered by Part A and Part B (see Figure 2).
Medicare spending is affected by a number of factors, including the number of beneficiaries, how care is delivered, the use of services (including prescription drugs), and health care prices. Both in the aggregate and on a per capita basis, Medicare spending growth has slowed in recent years, but is expected to grow at a faster rate in the next decade than since 2010 (Figure 6). Looking ahead, Medicare spending (net of income from premiums and other offsetting receipts) is projected to grow from $583 billion in 2018 to $1,260 billion in 2028. The aging of the population, growth in Medicare enrollment due to the baby boom generating reaching the age of eligibility, and increases in per capita health care costs are leading to growth in overall Medicare spending.
Figure 6: Actual and Projected Average Annual Growth Rates in Medicare and Private Health Insurance Spending, 1990-2027
Rising prescription drug costs are a particular concern in relation to Medicare spending. The average annual growth rate in per beneficiary costs for the Part D prescription drug benefit is projected to be higher in the coming decade (4.6%) than between 2010 and 2017 (2.2%) (Figure 7). This is due in part to projected higher Part D program costs associated with expensive specialty drugs.
Figure 7: Actual and Projected Average Annual Growth in Medicare Part D Per Enrollee Spending
How Medicare is Financed
Medicare is financed by general revenues (41% in 2017), payroll tax contributions (37%), beneficiary premiums (14%), and other sources (Figure 8).
Figure 8: Sources of Medicare Revenue in 2017
- Part A is funded mainly by a 2.9 percent payroll tax on earnings paid by employers and employees (1.45% each) deposited into the Hospital Insurance Trust Fund. Higher-income taxpayers (income greater than $200,000/individual and $250,000/married couple) pay a higher Medicare payroll tax on earnings (2.35%). The Part A Trust Fund is projected to be solvent through 2026.
- Part B is funded by general revenues and beneficiary premiums; the standard premium is $135.50 per month in 2019. Medicaid pays Part B premiums on behalf of beneficiaries who qualify for Medicaid based on having low incomes and assets. Beneficiaries with incomes greater than $85,000 for individuals or $170,000 for married couples filing jointly pay a higher, income-related monthly Part B premium, ranging from 35% to 85% of Part B program costs, or $189.60 to $460.50 per person per month in 2019.
- Part C, the Medicare Advantage program, is not separately financed; Medicare Advantage plans provide benefits covered under Part A, Part B, and (typically) Part D, and these benefits are financed primarily by payroll taxes, general revenues, and premiums. Medicare Advantage enrollees generally pay the monthly Part B premium and many also pay an additional premium directly to their plan. The average monthly premium for Medicare Advantage drug plans in 2018 was $34 per month.
- Part D is funded by general revenues, beneficiary premiums, and state payments. The average PDP premium for 2018 was $41 per month. Part D enrollees with higher incomes pay an income-related premium surcharge, with the same income thresholds used for Part B. In 2019, premium surcharges range from $12.40 to $77.40 per month for higher-income beneficiaries.
Medicare Payment and Delivery System Reform
Policymakers, health care providers, insurers, and researchers continue to debate how best to introduce payment and delivery system reforms into the health care system to tackle rising costs, quality of care, and inefficient spending. Medicare has taken a lead in testing a variety of new models that include financial incentives for providers, such as doctors and hospitals, to work together to lower spending and improve care for patients in traditional Medicare. The goals of these financial incentives generally link a portion of Medicare’s payments for services to “value” as determined by providers’ performance on spending and quality targets.
Accountable Care Organizations (ACOs) are one example of a delivery system reform model currently being tested within Medicare. With over 10 million assigned beneficiaries in 2018, ACO models allow groups of providers to accept responsibility for the overall care of Medicare beneficiaries and share in financial savings or losses depending on their performance in meeting spending and care quality targets. Other new models include medical homes, bundled payments (models that combine Medicare payments to multiple providers across a single episode rather than pay for each service separately), and initiatives aimed to reduce hospital readmissions.
Many of these Medicare payment models are managed through the Center for Medicare and Medicaid Innovation (CMMI), which was created by the Affordable Care Act (ACA). These models are being evaluated to determine their effect on Medicare spending and the quality of care provided to beneficiaries. The Secretary of Health and Human Services (HHS) is authorized to expand or extend models that demonstrate quality improvement without an increase in spending, or spending reduction without a decline in quality.
Looking to the Future
Medicare faces a number of critical issues and challenges, perhaps none greater than providing affordable, quality care to an aging population while keeping the program financially secure for future generations. While Medicare spending is on a slower upward trajectory now than in past decades, total and per capita annual growth rates appear to be edging away from their historically low levels of the past few years. Medicare prescription drug spending is also a growing concern, with the Medicare Trustees projecting a comparatively higher per capita growth rate for Part D in the coming years than in the program’s earlier years due to higher costs associated with expensive specialty drugs.
To address the health care financing challenges posed by the aging of the population, a number of changes to Medicare have been proposed, including restructuring Medicare benefits and cost sharing; raising the Medicare eligibility age; shifting Medicare from a defined benefit structure to a “premium support” system; and allowing people under age 65 to buy in to Medicare. As policymakers consider possible changes to Medicare, it will be important to evaluate the potential effect of these changes on total health care spending and Medicare spending, as well as on beneficiaries’ access to quality care and affordable coverage and their out-of-pocket health care costs.
How do I get answers to Medicare questions? ›
Do you have questions about your Medicare coverage? 1-800-MEDICARE (1-800-633-4227) can help. TTY users should call 1-877-486-2048.What is the basic explanation of Medicare? ›
Medicare is federal health insurance for anyone age 65 and older, and some people under 65 with certain disabilities or conditions. Medicaid is a joint federal and state program that provides health coverage for some people with limited income and resources.What are the 5 parts of Medicare? ›
Part A provides inpatient/hospital coverage. Part B provides outpatient/medical coverage. Part C offers an alternate way to receive your Medicare benefits (see below for more information). Part D provides prescription drug coverage.What are the three main components of Medicare? ›
- Medicare Part A (Hospital Insurance) Part A covers inpatient hospital stays, care in a skilled nursing facility, hospice care, and some home health care.
- Medicare Part B (Medical Insurance) ...
- Medicare Part D (prescription drug coverage)
You can make an appointment with a Social Security representative at your local office by calling 1-800-772-1213. You can also call Medicare directly at 1-800-633-4227.What are the most common questions about Medicare? ›
- How do I know what Medicare coverage is right for me? ...
- How much does Medicare cost? ...
- What do I do about Medicare if I work past age 65? ...
- How can I get dental and vision coverage with Medicare? ...
- Is Medicare mandatory?
- Medicare Part A: Hospital Insurance.
- Medicare Part B: Medical Insurance.
- Medicare Part C: Medicare Advantage Plans.
- Medicare Part D: prescription drug coverage.
- Medicare Provides Coverage to Millions. ...
- Medicare Costs Very Little Every Month. ...
- Medicare Advantage Plans Offer Additional Coverage. ...
- Medicare Has Led to Prescription Innovations. ...
- Medicare Has Resulted in Increased Medical Standards. ...
- Medicare Costs a Huge Amount to Administrate.
Part A (hospital coverage) covers things like inpatient hospital stays, home health care and some skilled nursing facility care. Together, Medicare Parts A and B are called Original Medicare.What are 5 important facts about starting Medicare? ›
- Fact 1: Medicare is for seniors and the disabled. ...
- Fact 2: Medicare covers more than 61 million people. ...
- Fact 3: Medicare has 4 parts. ...
- Fact 4: Some seniors are enrolled in Part A automatically. ...
- Fact 5: Many people receive Medicare Part A for free.
What does Part B not cover? ›
Medicare will not pay for medical care that it does not consider medically necessary. This includes some elective and most cosmetic surgery, plus virtually all alternative forms of medical care such as acupuncture, acupressure, and homeopathy—with the one exception of the limited use of chiropractors.Is Medicare free at age 65? ›
Most people age 65 or older are eligible for free Medicare Part A (hospital insurance) if they have worked and paid Medicare taxes long enough. You can sign up for Medicare Part B (medical insurance) by paying a monthly premium.What type of insurance is Medicare? ›
Original Medicare is a fee-for-service health plan that has two parts: Part A (Hospital Insurance) and Part B (Medical Insurance). After you pay a deductible, Medicare pays its share of the Medicare-approved amount, and you pay your share (coinsurance and deductibles).Why is Medicare important? ›
The program helps to pay for many medical care services, including hospitalizations, physician visits, prescription drugs, preventive services, skilled nursing facility and home health care, and hospice care.Do you automatically get Medicare with Social Security? ›
If you already get Social Security benefits, you do not need to sign up for Medicare. We will automatically enroll you in Original Medicare (Part A and Part B) when you become eligible.How do you qualify to get $144 back from Medicare? ›
- Are enrolled in Part A and Part B.
- Do not rely on government or other assistance for your Part B premium.
- Live in the zip code service area of a plan that offers this program.
- Enroll in an MA plan that provides a giveback benefit.
The Medicare premiums in 2023 are typically $164.90 per month for Part B, $28 for Medicare Advantage, $49 for Part D and $155 for Medicare Supplement. However, your monthly costs can vary based on the coverage you choose and other factors such as having a high income.Can AARP help me with Medicare questions? ›
Have additional Medicare questions? AARP can help. Call 877-634-8213 toll free, from 8 a.m. to 8 p.m. eastern time on weekdays, to speak to an AARP Help Center representative.What are some of the biggest challenges with Medicare today? ›
- Medicare enrollment and affordability challenges, often exacerbated by COVID-19.
- Difficulty appealing Medicare Advantage (MA) and Part D denials.
- Problems accessing and affording prescription drugs.
- The need for a comprehensive Medicare dental benefit.
- Most plans require you to use in-network providers. ...
- Academic medical centers offering more advanced treatments may not be in your network.
- Tests and treatments often require pre-authorization.
- The annual cap on out-of-pocket costs can be high — up to $7,550 to $11,300 in 2021.
What Seniors Should Know About Medicare? ›
Medicare is a federally funded insurance program for eligible participants 65 or over. Medicare has two parts, Part A (Hospital Insurance) and Part B (Medical Insurance). Medicare does not cover 100% of all costs.What is Medicare Part C and D? ›
Medicare Part C provides more coverage for everyday healthcare including prescription drug coverage with some plans when combined with Part D. A Medicare Advantage prescription drug (MAPD) plan is when a Part C and Part D plan are combined. Medicare Part D only covers prescription drugs.What is Medicare Part D? ›
Medicare Part D helps cover the cost of prescription drugs. Part D is optional and only provided through private insurance companies approved by the federal government. However, Part D is offered to everyone who qualifies for Medicare. Costs and coverage may vary from plan to plan.What is Medicare Part F and G? ›
Medigap Plan F and Medigap Plan G are the two most comprehensive Medicare Supplement Insurance plans. Plan F offers the most coverage, but it's not available to everyone. Plan G covers nearly as much as Plan F — and it's available for any Medicare member. Because Plan F covers more than Plan G, it also costs more.Do all seniors pay the same for Medicare? ›
If you have a high income, your costs for Medicare will be more. If your modified adjusted gross income on your tax return is above $91,000 as an individual or above $182,000 on a joint tax return, you'll pay higher rates for Part B and Part D.What is the biggest disadvantage of Medicare Advantage? ›
The biggest disadvantage of Medicare Advantage plans is the closed provider networks, limiting your choice of which doctor or medical facility to use. Medicare Advantage costs are also largely based on how much medical care you need, making it more difficult to budget for health care costs.What benefits are not covered by Medicare? ›
- Long-Term Care. ...
- Most dental care.
- Eye exams (for prescription glasses)
- Cosmetic surgery.
- Massage therapy.
- Routine physical exams.
- Hearing aids and exams for fitting them.
Medicare Part A is hospital insurance. Medicare Part B is medical insurance. Medicare Part C is the Medicare Advantage program. Medicare Part D is prescription drug coverage.Do I need both A and B Medicare? ›
No. If you aren't eligible for free Part A, you don't have to enroll. However, if you want to buy Medicare coverage and you want Part A, you also have to buy Part B.Where does Medicare money come from? ›
Funding for Medicare, which totaled $888 billion in 2021, comes primarily from general revenues (46%), payroll tax revenues (34%), and premiums paid by beneficiaries (15%) (Figure 8). Other sources include taxes on Social Security benefits, payments from states, and interest.
What is the first step in getting Medicare? ›
Ways to sign up: Online (at Social Security) – It's the easiest and fastest way to sign up and get any financial help you may need. (You'll need to create your secure my Social Security account to sign up for Medicare or apply for benefits.) Call Social Security at 1-800-772-1213.Will the Medicare age be raised to 67? ›
The MEA would remain at 67 thereafter. Under the second alternative, the MEA would increase by three months each year, beginning in 2023, until it reached 67 for people born in 1965. (That cohort will become eligible for Medicare benefits in 2032.) It would remain at 67 thereafter.Who qualifies for free Medicare B? ›
Medicare Part A (Hospital Insurance) and Medicare Part B (Medical Insurance) are available to the individuals below: Age 65 or older. Disabled. End-Stage Renal Disease (ESRD)How much is Part B Medicare premium for 2022? ›
The standard monthly premium for Medicare Part B enrollees will be $164.90 for 2023, a decrease of $5.20 from $170.10 in 2022.What expenses will Medicare Part B pay for? ›
Medicare Part B helps cover medically-necessary services like doctors' services and tests, outpatient care, home health services, durable medical equipment, and other medical services. Part B also covers some preventive services. Look at your Medicare card to find out if you have Part B.How much do most seniors pay for Medicare? ›
$0 for most people (because they or a spouse paid Medicare taxes long enough while working - generally at least 10 years). If you get Medicare earlier than age 65, you won't pay a Part A premium. This is sometimes called “premium-free Part A.”How much is taken out of your Social Security check for Medicare? ›
For most people, finding out how much will be taken out of your Social Security check is very easy. If you have Original Medicare and collect retirement benefits, then the process is automatic. The amount deducted is your monthly Part B premium ($164.90 or higher in 2023).Is Medicare based on income or assets? ›
Medicare premiums are based on your modified adjusted gross income, or MAGI. That's your total adjusted gross income plus tax-exempt interest, as gleaned from the most recent tax data Social Security has from the IRS.How do you explain Medicare? ›
Medicare is federal health insurance for anyone age 65 and older, and some people under 65 with certain disabilities or conditions. Medicaid is a joint federal and state program that provides health coverage for some people with limited income and resources.What is the best Medicare plan that covers everything? ›
Medicare Supplement Plan G is the best overall plan that provides the most coverage for seniors and Medicare enrollees. Plan G will cover almost everything except the Medicare Part B deductible, which is only $226 for 2023.
Who controls Medicare? ›
Medicare is federal health insurance for people 65 or older, and some people under 65 with certain disabilities or conditions. A federal agency called the Centers for Medicare & Medicaid Services runs Medicare.What are four benefits given by Medicare? ›
Part A provides inpatient/hospital coverage. Part B provides outpatient/medical coverage. Part C offers an alternate way to receive your Medicare benefits (see below for more information). Part D provides prescription drug coverage.Why do seniors need Medicare? ›
Medicare subsidizes health care costs for Americans 65 and older, and some people under 65 with certain disabilities or conditions. It's the primary health care insurance provider for seniors.Why do older people need Medicare? ›
Since its inception, Medicare has helped to cover the costs of health care — and safeguard the financial security — of people age 65 and older.How do I get the $16728 Social Security bonus? ›
Who is eligible for Social Security bonus? For every year that you delay claiming past full retirement age, your monthly benefits will get an 8% “bonus.” That amounts to a whopping 24% if you wait to file until age 70.What happens if you don't enroll in Medicare Part A at 65? ›
If you have to buy Part A, and you don't buy it when you're first eligible for Medicare, your monthly premium may go up 10%. You'll have to pay the penalty for twice the number of years you didn't sign up.What is the Social Security 5 year rule? ›
You must have worked and paid Social Security taxes in five of the last 10 years. If you also get a pension from a job where you didn't pay Social Security taxes (e.g., a civil service or teacher's pension), your Social Security benefit might be reduced.How do I get a Medicare manual? ›
To get a paper handbook, call us at 1-800-MEDICARE (1-800-633-4227).Where can I get unbiased information about Medicare? ›
Medicare.gov, the “Medicare & You” handbook, and 1-800-MEDICARE (1-800-633-4227) are your official sources of unbiased information from the government. TTY users can call 1-877-486-2048.Does Social Security answer questions about Medicare? ›
We provide general information about the Medicare program and can help you get a replacement Medicare card. Notify us timely of address changes, name changes, and deaths. Social Security enrolls you in Original Medicare (Part A and Part B).
What is the 2023 Medicare deductible? ›
What is the deductible for Original Medicare? In 2023, the Medicare Part A deductible is $1,600 per benefit period and the Part B annual deductible is $226.How much will Medicare Part D cost in 2023? ›
The estimated average monthly premium for Medicare Part D stand-alone drug plans is projected to be $43 in 2023, based on current enrollment, a 10% increase from $39 in 2022 – a rate of increase that outpaces both the current annual inflation rate and the Social Security cost-of-living adjustment for 2023.Do I automatically get Medicare when I turn 65? ›
You automatically get Medicare when you turn 65
Part A covers inpatient hospital stays, skilled nursing facility care, hospice care, and some home health care. Part B covers certain doctors' services, outpatient care, medical supplies, and preventive services.