When Every Minute Counts: Understanding Medicare at the Emergency Room
When Every Minute Counts: Understanding Medicare at the Emergency Room
No one plans to go to the emergency room. You’re having a heart attack, you’ve broken your ankle, your blood pressure is through the roof – and you’re not thinking about whether or not Medicare is going to cover this. But you should, because by the time you’ve finished at the ER, you’ll be receiving a slew of bills and you’ll wish you knew what Medicare actually covers to avoid being blindsided when you’re just trying to recover.
The good news is that Medicare does cover trips to the emergency room. The bad news is that how much you pay is a little more gray than it should be in a time of – well – emergency.
What Medicare Covers in The Emergency Room
Most emergency room care is covered under Medicare Part B, from the doctor’s evaluation and diagnosis to the tests administered (X-rays, blood tests, CT scans) to treatment (medications, supplies, etc.). This means that your doctor in the ER works under Part B, most of the services processed for payment through Part B and if they need to get blood work or x-rays during your time there, those are also under Part B.
This means that if you receive necessary treatment during your ER visit – medication and supplies – you’ll pay 20% of what Medicare accepts of the charges. This translates to 20% after you meet your Part B deductible (which in 2025 is $240). This doesn’t sound like much until you’re sitting in the ER racking up thousands of dollars worth of services and decide to run some routine tests while you’re waiting for the doctor.
However, there’s also a hospital facility fee that is billed separately – which could be covered by Part B or Part A, depending on how things go. For example, if you’re treated in the ER and discharged, that facility fee is typically Part B. However, if you’re admitted into the hospital (i.e. you’re staying overnight or longer), Part A will cover it – and you’ll have to pay the Part A deductible.
How Admission Changes Everything
You didn’t think about admission when you got to the emergency room; you were more concerned with your medical state. However, what most people don’t realize is that when a doctor admits you for observation or treatment, this changes which plan will cover it.
For example, if the ER doctor thinks that you need to stay in the hospital, suddenly you’re under Part A and looking at a $1,676 benefit period deductible (2025). That’s significantly more than your Part B deductible and it also comes with coverage for your first 60 days in the hospital for those who are planning on staying.
However, if you’ve merely been kept for "observation," there are loopholes. Many hospitals will admit you under observation – which means you’re still under Part B. This happens far too often as there is a difference between being admitted and being kept under observation; if you’re kept under observation, you’ll continue paying your 20% coinsurance since any hospital service provided to you will continue to be billed at like services in the emergency room.
In other words, as someone battling for their life (chest pain? I’d go. Trouble breathing? I’d go. Bad headache? I’d have to think about it.), now you have to ask whether you’re admitted or kept under observation because it truly matters for billing. If they’re going to keep you overnight regardless, you might as well get admitted so you’re not paying 20% coinsurance for three days in a hospital.
What If I Go Out-of-Network?
In the rare case where inpatient coverage is needed – but not actively using an in-network hospital – this is typically where Medicare can help. In cases of true emergencies, Medicare covers (for those enrolled in Advantage plans) services even if they go out-of-network (ideally this only happens for those enrolled in Advantage plans because they typically have networks).
In an emergency, however, network restrictions do not apply. Therefore, a plan must cover you as if you’ve received services in-network. However, once stabilized, you can be moved to another location for continued care.
For original Medicare (Parts A and B), there are no networks – any hospital that takes Medicare will treat you in an emergency or otherwise. But for Advantage plans, this vital exception comes into play. In an emergency – and you’re having a heart attack – isn’t the time to discuss whether this hospital is "the right one."
What’s Going to Be Billed When?
Emergency room billing is infamously slow and confusing. Hospital bills are sent separately from ER, doctors bills are sent separately from radiologists who read your X-rays/a lab who processed your bloodwork and possibly others.
Each gets billed separately and then you get a statement showing what your responsibility will be.
Confusingly enough, these bills may come in over weeks to months’ time. You may get the hospital bill three weeks after your appointment with urgent care only to get the doctor bill who attended to you four weeks later. This isn’t fair in terms of assessing what one owes.
Therefore, when you’re looking at does Medicare cover ER visits remember that an EOB will show what was paid and what’s your responsibility. Additionally, that EOB comes before the actual bill sometimes which adds further confusion. You’ll know what’s due before it actually comes however once it does come it’s unclear how much time you owe until everything comes due.
When Will Coverage Denied?
When an emergency room visit occurs because you had reason to believe that it would require emergency treatment (Medicare uses an aspect called the prudent layperson – the idea that if a layperson would think something needs urgent medical care than it should be covered), then Medicare will cover it all.
While no one wants to go get treated for a nonemergency when they’re feeling poor either way, they should get reimbursement based on intentions.
If someone goes to urgent care for something that could’ve waited until Tuesday doctor’s appointment or not was truly urgent (for example: I’ve had a sore throat for three weeks and I think I have strep but I just wanted my prescription renewed; my sprained ankle from two days ago; my cold from last week); Medicare may deny full payment.
Ultimately, it’s an arbitrary designation that should not be considered in full when someone is sick/hurt/not thinking straight anyway – but for their sake depending on how obvious or how gray it sounds could put them solely responsible for the bill.
Are Supplement Insurance Plans Included?
Supplement plans (Medigap) will cover most/all of that 20% coinsurance left Part B. For example, Plan F covers it all after meeting Part B deductible and Plan G covers it after meeting the Part B deductible – but it’s not available for new Medicare beneficiaries.
Without supplemental insurance – no Medigap – you’re taking home with you at least 20% of what’s due. Therefore, if your visit totaled $3000 under Part B you’ll be responsible for $600 (plus the deductible if not yet met). This isn’t horrible when it’s elective but when it’s emergent – and you’re on a fixed income – it still adds up.
For those taking Advantage plans – the same situation occurs – but they have copays (for example: $90 or $120 dollars) instead of percentages based on what’s easier for constituents. This might be better – or worse – depending upon whether it’s more than what 20% would’ve been.
For example: if an ER visit is $5000 – and your copay is $120 – great! Conversely, if an ER visit is $500 – and it’s a $120 deductible – and the math doesn’t work out – then it’s unfair.
What Should I do Now That It Happened?
You can’t prepare for emergencies – but you can prepare for the costs of them! Keeping information like "I’ll probably owe something out-of-pocket" gives people with HSAs or regular savings an incentive to plan accordingly: whether it’s setting funds aside annually for a low quarterly cost or making sure they have money on hand.
In addition, a good rule of thumb – for those actively using their health services – is that if someone gets admitted from an emergency room into the hospital; typically those charges from the ER don’t need to be paid PLUS payment upon admission.
It all counts as one event as soon as you’re rolled into your hospital room/taken off of the gurney.
Emergency rooms are expensive and confusing no matter what services are going on – but at least with Medicare emergency visits are covered (assuming it’s real) and no matter what hospital. It may not feel good getting subsequent bills higher than anticipated – but at least it’s not a death sentence financially while you’re trying to nurse yourself back to health during a true emergency situation.