What Does Medicare Part A Cover?

Young male nurse helps elderly patient with weekly pill planner

miodrag ignjatovic / Getty Images

Medicare is the federal health insurance program that provides coverage for American citizens and permanent residents who are age 65 and older.

The original Medicare program had two parts: hospital insurance (Part A) and medical insurance (Part B). But it has expanded over the years to include optional drug coverage (Part D). Medicare can also refer to comprehensive plans offered by private companies (Part C/Medicare Advantage Plans) and supplemental plans (Medigap), also offered by private companies. First introduced in 1965, Medicare covered almost 63 million people in 2020.

Medicare is an important part of your retirement plan. Learn the basics of what Part A does and how to sign up for it.

Key Takeaways

  • There are multiple parts to Medicare coverage.
  • Part A is hospital insurance. It also covers hospice care, plus some skilled nursing facility care and home health care.
  • Most people don't pay a premium for Part A coverage.
  • Most people are eligible to sign up for Part A and all other Medicare benefits from three months before the month they turn 65 through three months after that month.

What Is Medicare Part A?

Part A is the hospital insurance portion of Medicare. Most people become eligible for Medicare once they turn 65, and they may be automatically enrolled if they receive Social Security benefits. Otherwise, you have a limited window of time during which to sign up for Part A without having to pay a penalty. This is referred to as the initial enrollment period. It lasts for a total of seven months (three months before you become eligible for Medicare and three months after).

You won't pay a premium for Part A if you already receive Social Security retirement benefits or you're eligible for them.


You could have a coverage gap if you wait to sign up for Medicare until the month you turn 65 or later.

What Does Medicare Part A Cover?

Part A covers a percentage of hospital or skilled nursing facilities based on benefit periods. A benefit period begins when you're admitted and ends 60 days after you're no longer receiving care. There is no limit on benefit periods. 

Part A also covers 100% of hospice care and skilled intermittent home health care.

Inpatient Care in a Hospital

What it pays for:

  • Hospital services
  • Supplies that are part of your treatment
  • Semi-private rooms
  • Nursing care
  • Drugs 
  • Meals

When it pays: Part A coverage begins when you're admitted under a physician's orders to a hospital that accepts Medicare. 

What you pay:

  • A $1,484 deductible, increasing to $1,556 in 2022, for each benefit period
  • $371 coinsurance after 61 days, increasing to $389 in 2022
  • After 91 days, $742 coinsurance for up to 60 days, increasing to $778 in 2022
  • 100% of charges once these benefits are expired

Skilled Nursing Facility Care

What it pays for:

  • Short-term skilled nursing care
  • Occupational, speech, and physical therapy
  • Medical social services (medical social workers)
  • Dietary counseling
  • Medications
  • A semi-private room
  • Ambulance services

When it pays: After you have had a qualifying hospital stay of three days. Care ordered by a physician has to be for a qualifying condition that was treated during your hospital stay, or that began in a skilled nursing facility.

What you pay:

  • 100 days of skilled nursing care per benefit period
  • First 20 days: $0
  • Day 21 through day 100: $185.50, increasing to $194.50 in 2022
  • Day 101 and beyond: all costs

Hospice Care

What it pays for:

  • Any items, services, or durable medical equipment needed to relieve pain and manage symptoms, including drugs for pain management
  • Medical, nursing, and social services
  • Aide and homemaker services
  • Inpatient respite care received in a Medicare-certified facility to provide rest to the usual caregiver, such as a family member

Services can be provided in the home, or at a Medicare-certified facility. 

When it pays: A hospice doctor and your personal physician certify a life expectancy of six months or less.

What you pay:

  • $0 for care
  • $5 copay for prescriptions
  • 5% copay for the Medicare-approved amount for inpatient respite care

Home Health Care

What it pays for:

  • Part-time skilled nursing care
  • Home health aid
  • Medical social services
  • Physical, occupational, and speech therapy
  • Durable medical equipment needed for care
  • Osteoporosis injections for women

When it pays: Your physician certifies that you are homebound, puts you on a plan of care that requires one or more home health care services, and reviews that plan of care regularly.

What you pay:

  • $0 for home health care
  • 20% copay for the Medicare-approved amount for durable medical equipment

What Doesn’t Medicare Part A Cover?

No part of Medicare covers long-term care, or 24 hour-a-day custodial care. Custodial care is given at home or in a nursing home, such as a memory unit, and provides assistance with the six activities of daily living: eating, bathing, dressing, toileting, transferring, and continence. 

Medicare also does not cover dental care, dentures, eye exams for glasses, hearing aids, acupuncture, cosmetic surgery, or routine foot care. 

Part A additionally doesn’t cover prescription drugs (other than drugs for pain management in hospice or as part of your inpatient treatment), physician fees, diagnostic services, or preventive services. 

How Part A Compares to Other Parts of Medicare

Part B

Part B is the counterpart to Medicare Part A. It covers regular exams and diagnostic services.

What it pays for:

  • Physician fees
  • Diagnostic tests
  • Preventive and screening services
  • Ambulance services
  • Durable medical equipment
  • Mental health services

When it pays: Services have to meet Medicare guidelines. Medicare publishes a guide of services covered and their maximum fees. 

What you pay: 

  • Most people pay the standard premium of $170.10 per month as of 2022.
  • High-income earners may pay up to $578.30 per month in 2022.
  • You may have to pay an ongoing late fee if you enroll in part B after your initial enrollment period.

Part C

Part C is Medicare Advantage. It's a comprehensive health plan offered by private insurance companies. 

What it pays for: These plans have to cover at least what Medicare covers, including prescriptions, and many offer more coverage like dental and vision benefits. Medicare beneficiaries can enroll in Medicare Advantage instead of Parts A, B, and D.

When it pays: It depends on the specific plan you enroll in, but benefits eligibility will be similar to other Medicare plans.

What you pay: You must enroll and pay for the Part B premium if you select Medicare Advantage. Some Medicare Advantage plans will pay the Part B premium for you, and others will charge an additional premium. Each Medicare Advantage plan has its own deductibles and copays.

Part D

Part D is Medicare-approved prescription drug coverage offered by private insurance companies. 

When it pays: Medicare Part D is optional. You may have to pay an ongoing penalty if you enroll in Part D after your initial enrollment period.

What it pays for: Prescriptions have to meet plan approval for use.

What you pay: Each plan has its own premiums, copay, and deductible. 

Frequently Asked Questions (FAQs)

How much does Medicare Part A cost?

There is no cost for Medicare Part A if you're eligible for Social Security benefits.

How do I sign up for Medicare Part A?

You can enroll online from the Social Security Administration website.

How is Medicare Part A financed?

Part A is financed primarily through premiums, the government’s general fund, and Medicare payroll taxes that are paid by employers and their employees. The withholding rate is 1.45% for employees and employers, for a total of 2.9%. An additional 0.9% is withheld on earnings above $200,000.

Was this page helpful?
The Balance uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Centers for Medicaid & Medicare Services. "Medicare Beneficiaries at a Glance."

  2. Medicare.gov. "When Does Medicare Coverage Start?"

  3. Medicare.gov. "Inpatient Hospital Care."

  4. Medicare.gov. "Skilled Nursing Facility (SNF) Care."

  5. Medicare.gov. "Hospice Care."

  6. Medicare.gov. "Home Health Services."

  7. Medicare.gov. "What's Not Covered by Part A & Part B?"

  8. Medicare.gov. "Part B Costs."

  9. Medicare.gov. "How Do Medicare Advantage Plans Work?"

  10. Medicare.gov. "Part D Late Enrollment Penalty."

  11. Medicare.gov. "Costs For Medicare Drug Coverage."

  12. Peter G. Peterson Foundation. "Budget Basics: Medicare."

  13. Internal Revenue Service. "Topic No. 751 Social Security and Medicare Withholding Rates."

Related Articles