
Medicare is a federal health insurance program for people aged 65 and older, as well as those with certain disabilities or conditions. It consists of several parts, including Part A (Hospital Insurance) and Part B (Medical Insurance). While Part A is available at no cost to most individuals, Part B comes with a monthly premium, a deductible, and coinsurance or copay. Part B covers medically necessary outpatient services and preventive care, including doctor appointments, tests, scans, and emergency services. It also covers some prescription drugs, oral cancer drugs, and medicines used with durable medical equipment.
| Characteristics | Values |
|---|---|
| Name | Medicare Part B |
| Other Names | Medical Insurance, Original Medicare |
| Eligibility | People aged 65 or older, with a disability, or with ESRD |
| Cost | Monthly premiums, a deductible, and coinsurance or copay |
| Coverage | Medically necessary services, preventive services, outpatient care, doctor's office visits, scans and tests, inpatient medicine, oral cancer drugs, medicines used with durable medical equipment, prescription drugs |
| Additional Information | Medicare Part B is not required, but individuals must have Part A and Part B to buy a Medicare Advantage or Part D plan. |
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What You'll Learn
- Medicare Part B covers medically necessary services and preventive services
- Medicare Part B covers outpatient care, including doctor's appointments, scans and tests
- Medicare Part B covers some prescription drugs
- Medicare Part B costs include monthly premiums, deductibles, and coinsurance
- Medicare Part B eligibility includes people aged 65 or older, with a disability, or with ESRD

Medicare Part B covers medically necessary services and preventive services
Medicare Part B is a form of medical insurance that covers medically necessary services and preventive care services. It is one of the parts of Original Medicare, which also includes Part A. Other parts of Medicare include Part C, Part D, and Medigap.
Medically necessary services refer to services or supplies that meet the accepted standards of medical practice to diagnose or treat a medical condition. This includes services such as doctor visits, outpatient care, lab tests, and durable medical equipment. For example, if you require an insulin pump, Part B would cover this under its durable medical equipment benefit.
Preventive services, on the other hand, focus on healthcare to prevent illnesses or detect them in their early stages when treatment is likely to be most effective. This includes services such as screenings, vaccinations, and check-ups. For instance, Medicare Part B may cover the flu shot to prevent influenza.
Most preventive services are provided free of charge if you use a healthcare provider who accepts assignment. However, if you have a Medicare Advantage Plan or a different Medicare plan, the rules may vary, but the plan must provide at least the same coverage as Original Medicare.
Additionally, if you have Medicare Supplement Insurance (Medigap) along with Part B, your Medigap plan should cover the cost of insulin (usually $35 or less) if you require it.
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Medicare Part B covers outpatient care, including doctor's appointments, scans and tests
Medicare Part B is medical insurance that covers medically necessary services and preventive services. This includes outpatient care, doctors' appointments, scans, and tests.
Medicare Part B covers laboratory work, X-rays, CT scans, MRIs, EKGs, and other diagnostic tests when you are not a patient in a hospital or skilled nursing facility. For instance, if you are undergoing care for obesity, your physician can recommend a specific treatment and submit it to Medicare for coverage approval. Lab work and tests can be done at a hospital lab or an independent laboratory facility approved by Medicare.
Medicare Part B also covers a yearly mammogram, even if you haven't met your annual deductible. The mammogram must be performed by your doctor or a facility certified for mammography by Medicare. Additionally, Medicare Part B covers outpatient physical, occupational, and speech therapy when prescribed and regularly reviewed by a doctor and provided by a Medicare-approved facility or therapist.
Medicare Part B covers medically necessary doctors' services, whether provided at a hospital, a doctor's office, or at home. It also includes outpatient medical services provided by hospital or doctor's office staff, such as nurses, nurse practitioners, surgical assistants, and laboratory or X-ray technicians.
It is important to note that while Medicare Part B helps cover doctors' appointments, you may still need to pay some money toward your visit. Additionally, Medicare only pays a limited amount of outpatient hospital and clinic bills.
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Medicare Part B covers some prescription drugs
Medicare Part B is also known as Medical Insurance. It covers a limited number of outpatient prescription drugs under specific conditions. Part B covers drugs that are typically administered by a healthcare provider or in a hospital/clinical outpatient setting. This includes drugs administered by a doctor or in a hospital outpatient setting. It is important to note that Part B does not cover self-administered drugs, except in very limited circumstances, such as hospital outpatient services. Doctors, healthcare providers, and pharmacies must accept assignment for Part B-covered drugs and cannot charge more than the coinsurance or copayment for the drug itself.
Part B covers prescription drugs that are considered medically necessary and meet accepted standards of medical practice to diagnose or treat a medical condition. This includes drugs used with certain types of durable medical equipment (DME), such as infusion pumps or nebulizers, when deemed medically necessary. Additionally, Part B covers some oral cancer drugs (chemotherapy) and oral anti-nausea medications taken as part of cancer treatment.
Medicare Part B also covers certain preventive services, such as flu shots, pneumococcal shots, COVID-19 vaccines, and Hepatitis B shots for certain individuals. It also includes coverage for transplant drug therapy and certain immunosuppressive drugs if Medicare helped pay for the organ transplant. However, this benefit only covers immunosuppressive drugs and no other items or services, and it is not a substitute for comprehensive health coverage.
It is worth noting that Medicare Part D, offered by private companies, typically covers most outpatient prescription drugs filled at a pharmacy. However, Part B may continue to cover certain outpatient prescription drugs that it previously paid for. Therefore, it is essential to check the specific details of your Medicare plan, including any additional coverage or benefits, to understand what prescription drugs are covered under Part B or other parts of Medicare.
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Medicare Part B costs include monthly premiums, deductibles, and coinsurance
Medicare Part B is a federal health insurance program for anyone aged 65 and over, as well as some people under 65 with certain disabilities or conditions. It covers medically necessary services and preventive services. Medically necessary services include services and supplies that meet accepted standards of medical practice to diagnose or treat a medical condition. Preventive services include healthcare to prevent illness or detect it in its early stages.
In addition to the monthly premium and annual deductible, Medicare Part B enrollees are also responsible for coinsurance payments. Coinsurance is a percentage of the cost of a covered service that the enrollee is responsible for paying. The amount of coinsurance varies depending on the plan and the service received. For example, in 2025, beneficiaries will pay a coinsurance amount of $419 per day for the 61st through 90th day of a hospitalization.
It is important to note that Medicare Part B is optional, and enrollees must pay a monthly premium to maintain their coverage. However, if you have limited income and resources, you may be able to get help from your state to pay your premiums and other costs. Additionally, supplemental coverage, such as Medicare Supplement Insurance (Medigap) or a Medicare Advantage Plan, can help with out-of-pocket costs.
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Medicare Part B eligibility includes people aged 65 or older, with a disability, or with ESRD
Medicare Part B is medical insurance that helps cover medically necessary services and preventive services. Medically necessary services are services or supplies that meet accepted standards of medical practice to diagnose or treat your medical condition. Preventive services are healthcare services that prevent illness or detect it at an early stage when treatment is likely to be most effective.
Medicare Part B eligibility includes people aged 65 or older. In fact, most people get Part A for free, but some have to pay a premium for this coverage. To be eligible for premium-free Part A, an individual must be entitled to receive Medicare based on their own earnings or those of a spouse, parent, or child. To receive premium-free Part A, the worker must have a specified number of quarters of coverage and file an application for Social Security or Railroad Retirement Board benefits.
People under 65 may be eligible for Medicare Part B if they have a disability. If someone is under 65 and becomes entitled to Medicare based on disability, entitlement begins with the 25th month of disability benefit entitlement. For these individuals, the IEP (Initial Enrollment Period) begins 3 months before the 25th month of disability benefit entitlement, includes the 25th month, and ends 3 months after. Disabled individuals are automatically enrolled in Medicare Part A and Part B after they have received disability benefits from Social Security for 24 months.
Medicare Part B eligibility also includes people with End-Stage Renal Disease (ESRD). The IEP for people with ESRD varies based on their situation. Coverage will begin the month after a person enrolls during their IEP. Individuals with ESRD should complete form CMS-43 to enroll in Part A and Part B.
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Frequently asked questions
Medicare Part B is the part of Medicare that provides medical insurance. It covers medically necessary outpatient services and preventive care for people 65+ and those under 65 with a disability or specific health condition. It is available to individuals who are eligible for premium-free Part A.
Medicare Part B covers doctor appointments, outpatient testing, scans and tests, and emergency services. It also covers some oral cancer drugs and medicines used with durable medical equipment, such as insulin pumps and nebulizer medications. It may also cover drugs given in a hospital outpatient situation, though this is rare.
The costs of Part B include monthly premiums, a deductible, and coinsurance or copay. Most people pay a premium of $185 per month. Medicare calculates these premiums based on income brackets or how long an individual has worked and paid taxes in the United States.





























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