Not all hospitals accept Medicare, and some accept it only for certain services or patient types

Most hospitals in the United States do accept Medicare, but the word "most" matters. A small number of hospitals — usually specialty facilities, religious institutions with specific policies, or very small rural hospitals — do not participate in Medicare at all. Even hospitals that do accept Medicare may have restrictions: some take Medicare only for emergency care, some only for inpatients, and some only for certain diagnoses. Before you schedule a procedure or go to an emergency room, you need to know whether that specific hospital will accept your Medicare coverage.

The stakes are real. If you go to a non-participating hospital for a non-emergency procedure, you could be billed the full charge. Medicare will not pay, and you will owe the difference. In an emergency, the rules are different — hospitals must stabilize you regardless of Medicare status — but you still need to understand what happens after stabilization and whether you will be transferred.

Key Takeaways

  • Most hospitals accept Medicare, but you must check the specific hospital before scheduling non-emergency care, because some do not participate at all.
  • The Medicare.gov hospital search tool and your Medicare plan's provider directory are the fastest ways to confirm a hospital accepts your coverage.
  • If a hospital does not accept Medicare, you can ask for a list of nearby hospitals that do, or contact your plan for alternatives in your area.
  • Emergency rooms must treat you regardless of Medicare status, but you should still verify coverage for any planned admission or procedure ahead of time.

How to learn about a specific hospital takes Medicare

The easiest method is to use the Care Compare tool on Medicare.gov. Go to the site, select "Care Compare," choose "Hospitals," enter the hospital name and your state, and the tool will tell you whether it is a Medicare-participating provider. The tool also shows the hospital's address, phone number, and whether it is certified for specific services like cardiac care or stroke treatment.

If you have a Medicare Advantage plan (Part C) or a Medigap policy, call the customer service number on your insurance card and ask directly whether the hospital is in-network. In-network means the hospital has a contract with your plan and will accept your coverage. Out-of-network hospitals may still accept Medicare, but your out-of-pocket costs will be higher, and some Advantage plans will not cover out-of-network care except in emergencies.

You can also call the hospital's billing department directly and ask: "Does this hospital accept Medicare?" Be specific about whether you have Original Medicare (Part A and B) or a Medicare Advantage plan, because the answer may differ. Write down the name of the person you spoke to and the date, in case you need to reference the conversation later.

Types of hospitals and their Medicare participation

Most general acute-care hospitals — the kind you think of as a regular hospital — accept Medicare. These include large medical centers, community hospitals, and most teaching hospitals. They are required to accept Medicare if they want to receive any Medicare payment at all, which means they cannot pick and choose which Medicare patients to treat.

Specialty hospitals are more variable. Some psychiatric hospitals, rehabilitation hospitals, and long-term acute-care hospitals do accept Medicare, but not all. A few religious hospitals have opted out of Medicare entirely, usually for philosophical reasons. Some very small rural hospitals have closed or stopped accepting Medicare because the reimbursement does not cover their costs, though this is rare.

Urgent care centers and freestanding emergency rooms are not hospitals and have different rules. Many do not accept Medicare at all. If you use one, ask before treatment whether they accept your coverage, because the bill can be substantial if they do not.

What happens if the hospital does not accept Medicare

If you schedule a non-emergency procedure at a hospital that does not accept Medicare, you are responsible for the full bill. Medicare will not pay anything, and the hospital can bill you for the entire cost. This is different from going out-of-network at a hospital that does accept Medicare — in that case, Medicare pays its share and you pay a higher percentage.

If you discover before treatment that the hospital does not accept Medicare, ask the hospital for a list of nearby hospitals that do. Most hospitals have this information readily available. You can also call your Medicare plan or contact your doctor's office — they often know which hospitals in your area accept Medicare and can help you find an alternative.

If you are already admitted and discover the hospital does not accept Medicare, contact your hospital's patient advocate or billing department when ready. Explain that you did not know the hospital was non-participating. Some hospitals will work with you on payment plans or may transfer you to a participating hospital if medically appropriate.

Emergency room visits and Medicare coverage

Emergency rooms must treat you and stabilize your condition regardless of whether the hospital accepts Medicare. This is a federal requirement under the Emergency Medical Treatment and Labor Act (EMTALA). You cannot be turned away from an emergency room because you have Medicare or because the hospital does not participate in Medicare.

However, once you are stabilized, the hospital may transfer you to another facility if you cannot pay. If the hospital does not accept Medicare and you do not have other insurance or savings, ask the hospital social worker about financial information programs, payment plans, or transfer options before you are discharged. Many hospitals have charity care policies that can reduce or eliminate your bill if your income is low enough.

What to do before a scheduled procedure or admission

Call the hospital at least one week before your procedure and confirm three things: that the hospital accepts Medicare, that your specific doctor is credentialed there, and that the procedure you are having is covered. Ask to speak to someone in patient registration or billing who can answer all three questions.

If you have a Medicare Advantage plan, also ask whether the hospital is in-network for your plan. If it is out-of-network, ask what your out-of-pocket costs will be. Some Advantage plans require prior authorization before certain procedures, so check with your plan as well.

Get the name and direct phone number of the person you spoke to, and ask them to note in your file that you confirmed Medicare coverage. If there is a billing problem after your visit, you will have documentation that you checked ahead of time.

Medicare-participating vs. non-participating providers

A Medicare-participating hospital has signed an agreement with Medicare to accept Medicare's approved amount as payment in full for covered services. You pay your deductible and coinsurance, but the hospital cannot bill you for the difference between what Medicare approves and what it charges.

A non-participating hospital has not signed this agreement. These are rare, but they can bill you for the difference between Medicare's approved amount and their actual charge — a practice called balance billing. This is why it is critical to know before you go.

Some hospitals participate in Medicare for inpatient care but not for outpatient services, or vice versa. This is uncommon, but it is another reason to ask specifically about the type of care you need.

If you cannot find the hospital in the Medicare directory

If a hospital does not appear in the Care Compare tool, it may be non-participating, newly opened, or listed under a different name. Call the hospital directly and ask whether it is a Medicare provider. If it says no, ask for the names and addresses of the nearest Medicare-participating hospitals.

You can also contact your state's health department or your local Area Agency on Aging — they maintain lists of hospitals in your region and can tell you which ones accept Medicare. If you have a Medicare Advantage plan, your plan's customer service line can also provide a list of in-network hospitals near you.

Frequently Asked Questions

Can a hospital that accepts Medicare refuse to treat me?

No, if you are admitted as a patient, the hospital cannot refuse treatment based on Medicare status. However, the hospital can refuse to schedule non-emergency procedures if it does not accept Medicare. In emergencies, the hospital must stabilize you under federal law, regardless of insurance.

What if my doctor's office says the hospital accepts Medicare but it does not?

Call the hospital directly to confirm. Doctor's offices sometimes have outdated information. If there is a discrepancy, contact your Medicare plan and ask them to verify. Keep records of all conversations so you have documentation if a billing dispute arises later.

Do all Medicare Advantage plans cover the same hospitals?

No. Each Medicare Advantage plan has its own network of hospitals. A hospital may accept Medicare but not be in-network for your specific plan. Always check your plan's provider directory or call your plan's customer service before scheduling care.

What should I do if I am billed by a non-participating hospital?

Contact the hospital's billing department and explain that you did not know it was non-participating. Ask about financial information, payment plans, or charity care. If the hospital balance-billed you, you can file a complaint with your state's insurance commissioner or contact Medicare directly.

Are all urgent care centers required to accept Medicare?

No. Urgent care centers are not hospitals and are not required to accept Medicare. Always ask before treatment whether they accept your coverage. If they do not and you receive care, you will be responsible for the full bill.