Part B does not cover most prescription drugs and only offers very limited drug coverage. It also covers certain vaccines, including those for the flu, hepatitis B, and pneumonia. Medicare Part B covers a host of preventative services, from disease screenings to mental health screenings. treatments and medications administered by a healthcare professional.diagnostic services, like blood tests or X-rays.Medicare Part B covers medically necessary preventative, diagnostic, and treatment services, including: Part A does not cover most hospital room amenities, private and custodial care, or long-term care. Instead, outpatient hospital services are covered under Medicare Part B. Medicare Part A does not cover outpatient hospital services, such as emergency room visits that do not result in inpatient stays. Medicare Part A covers most hospital services, including: Your Medicare coverage depends onwhich parts of Medicare you are enrolled in. You will pay a separate premium for this plan. Medigap, also known as Medicare supplemental insurance, can also be added onto original Medicare and helps cover some of your out-of-pocket Medicare costs. You will pay a separate deductible and premium for this plan. Medicare Part D, also known as prescription drug coverage, can be added onto original Medicare and helps cover some of your prescription drug costs. You may pay monthly premiums and copays with these plans, although each has different costs. Most Medicare Advantage plans also offer additional coverage for prescription drugs, vision, dental, hearing, and more. Medicare Part C, also known as Medicare Advantage, is a private insurance option that covers both Medicare Part A and Part B services. Together, Medicare parts A and B are known as “ original Medicare.” Medicare Part C There is an annual deductible and a monthly premium to cover, as well as some coinsurance costs. Medicare Part B, also known as medical insurance, covers outpatient preventative, diagnostic, and treatment services related to your health conditions. You may also have to pay a premium for Part A coverage, depending on your income level. There is a deductible to meet and coinsurance fees. Medicare Part A, also known as hospital insurance, covers services you receive when you’ve been admitted to a hospital or other inpatient healthcare facility. Medicare consists of multiple “parts”that you can enroll in for different types of healthcare coverage. Some individuals who are younger than age 65 and have chronic health conditions or disabilities may also be eligible for Medicare coverage. Medicare is a government-funded program that provides health insurance to Americans who are age 65 and older.