Can I ask for an itemized bill?

Yes. It is a record of your own care, providers supply it on request, and it is normally free. Ask for an "itemized statement" for the visit date — the version with every charge and its code, not a summary.

What is the allowed amount on an EOB?

The allowed amount is the price your insurer has negotiated with an in-network provider. Your share is calculated from that number, not from the provider's sticker price. In network, the difference between the two is written off, not billed to you.

The hospital billed me for the part insurance did not pay. Is that allowed?

If the provider is in your plan's network, generally no: they agreed to accept the allowed amount as full payment, and billing you the difference is called balance billing. Out of network the rules differ, and emergency care has separate protections under the No Surprises Act.

There is a charge on my bill that is not on my EOB. What does that mean?

Usually it means the claim for that charge has not finished processing. Charges reach your insurer at different times. Wait for the EOB that lists it, or call and ask whether it has been submitted to your insurance, before paying it.

What if I cannot afford the bill at all?

Ask whether the hospital has a financial assistance policy before agreeing to a payment plan. Nonprofit hospitals are required to have one and to say who qualifies. It goes by household income, the thresholds are often higher than people expect, and you can ask after the bill has arrived.

How to dispute a medical bill

Six steps, the documents each one needs, and the exact words to use. No account needed to follow any of it.

Last updated 17 September 2026

Most disputed medical bills are not disputes about care. They are arithmetic: a charge billed twice, a charge your insurance has not processed yet, or a bill asking for more than your own insurance letter says you owe. All of that is checkable from two pieces of paper you can get for free.

The six steps

Ask for the itemized bill
Get the EOB from your insurer
Compare them, line by line
Look for the four things that usually go wrong
Call, and say one specific sentence
Put it in writing

And if you cannot pay it at all, start with financial assistance rather than a payment plan.

1. Ask for the itemized bill

A bill that says "hospital services — $9,000" cannot be checked by anyone, including you. The itemized statement is the same visit with every charge listed separately and a code against each one. It is a record of your own care, you are entitled to ask for it, and providers normally supply it free.

Call the number on the bill and say:

Please send me an itemized statement for my visit on [date] — the version with every charge and its code, not a summary. You can email it or post it.

Watch: why one line can't be checked — 35-second video

2. Get the EOB from your insurer

The Explanation of Benefits is the letter from your insurance company that says "THIS IS NOT A BILL" at the top. It is their answer to the claim your provider sent them, and for each service it lists four things: what the provider billed, what your plan allowed, what the plan paid, and what you owe.

Find it on your insurer's website: sign in, go to Claims, open the claim for your visit date, and download the EOB as a PDF. Insurers also post them.

One visit actually produces three documents, and you only ever receive two of them: the claim goes from the provider to the insurer, the EOB comes back from the insurer, and the bill comes to you last.

Watch: which paper is which · claim, EOB, bill — about 40 seconds each

3. Compare them, line by line

Put the itemized bill next to the EOB and match them up by date and service. The number that matters is the allowed amount — the price your insurer has negotiated with an in-network provider. Your share is worked out from that number, never from the provider's sticker price.

So a $2,000 charge with a $300 allowed amount is not a $2,000 problem. If your plan says you pay 20% coinsurance, your share is 20% of $300 — sixty dollars. The $1,700 difference is the discount the provider agreed to when it joined the network. In network, it comes off the bill; it does not come to you.

Out of network is different. A provider outside your plan's network has not agreed to that price and may bill you the difference. Emergency care, and out-of-network providers working inside an in-network hospital, have separate protections under the federal No Surprises Act.

Watch: the allowed amount is the only real number — 51-second video

4. Look for the four things that usually go wrong

Billed above the allowed amount

The bill asks for more than the EOB says you owe. In network this is the most common error worth arguing about, and the strongest one, because the provider's own contract settles it.

The same charge twice

A duplicate is the same person, same date, same code, billed twice. Two identical lines are not automatically a duplicate: two people can get the same shot, a knee can be X-rayed from two angles, a drug can be given in two doses. Check the name and the date before you call it one — and if the EOB lists the charge once, the letter already agrees with you.

Watch: when two identical charges are fine — 38-second video

A charge that is not on the EOB at all

Usually this means the claim has not finished processing rather than that anything is wrong. Charges reach your insurer at different times and one can run weeks behind the rest. Wait for the EOB that lists it, or ask the provider one question: has this been sent to my insurance?

Watch: a charge your insurance hasn't seen — 36-second video

Cost-sharing that does not match your plan

A copay is a fixed price your plan told you in advance. Coinsurance is a percentage of the allowed amount. A deductible is what you pay yourself each year before the plan starts paying its share, and it resets — which is why the same visit can cost more in January than it did in November. Your Summary of Benefits and Coverage lists what you should pay for each kind of care; every plan has one, in the same federally required layout, on your insurer's website.

Watch: copay vs coinsurance · the January reset · where your plan's prices are written

5. Call, and say one specific sentence

Call the number on the bill — the provider's billing office, not your insurer, if the problem is the bill itself. Be specific rather than general: name the line, the date, and the two numbers that disagree.

I'm looking at my itemized bill for [date] and my EOB for the same visit. The bill charges $[amount] for [service], but my EOB says the allowed amount is $[amount] and my responsibility is $[amount]. This provider is in my network. Please correct the balance and send a revised statement.

Write down who you spoke to and when. If they say the claim is still processing, ask when it was submitted, and wait for the EOB rather than paying.

Watch: billed for the network discount — 46-second video

6. Put it in writing

A phone call that works still leaves no record. Send a short letter or portal message the same day, quoting the lines. Short and specific beats long and angry:

[Your name] · [Account or invoice number] · [Date of service] I am disputing the following charges on the itemized statement for the visit above. 1. [Service, code] — billed $[amount]. My Explanation of Benefits dated [date] shows an allowed amount of $[amount] and patient responsibility of $[amount]. This provider is in my plan's network. 2. [Service, code] — appears twice on the statement, both on [date], for the same patient. My EOB lists it once. Please review these lines and send a corrected statement. I am happy to pay the amount my EOB shows as my responsibility, and I am withholding payment on the disputed lines only until this is resolved. [Name, contact details, date]

Keep paying anything that is genuinely yours while the rest is sorted out. If the provider will not correct it, the next step is an appeal to your insurer — deadlines are set by your plan and are often 180 days from the EOB date — or your state's insurance department or attorney general.

If you cannot pay it at all: ask about financial assistance first

Before agreeing to a payment plan, ask one question: does this hospital have a financial assistance policy? Nonprofit hospitals are required to have one and to say who qualifies. The old name for it is charity care, it can reduce a bill or clear it, and it goes by household income — the thresholds are often higher than people expect, so it is worth asking even if you assume you earn too much. You can ask after the bill has already arrived.

Watch: the question to ask before a payment plan — 37-second video

Common questions

Can I really ask for an itemized bill?

Yes, and it is normally free. It is a record of your own care. Ask for the "itemized statement" for the date of service.

Should I pay the bill while I dispute it?

Pay the part your EOB says is yours. Withhold only the disputed lines, say so in writing, and keep a record of the call. Silence is what turns a dispute into a collections problem.

How long do I have?

Ask as soon as you notice. Insurer appeal deadlines are set by your plan and are often 180 days from the EOB date; hospital financial-assistance windows usually run for months after the first statement.

What if I never got an EOB?

Download it from your insurer's Claims page. If no claim exists for the visit, the provider may not have billed your insurance at all — that is the first thing to ask them about.

Or let us do the line-by-line part

Upload the itemized bill and the EOB. You get every charge that disagrees with what your plan allowed, with the dollar amounts and the quote it came from. Free, and the code is public.

Check a bill free

General information, not legal or medical advice. Rules differ by plan and by state, and the figures used here are examples. Always check amounts against your own documents before disputing a charge.