Your hospital bill is probably wrong.
Here's how to fight back.

Free plain-English guides on disputing medical bills, appealing insurance denials, and understanding your rights under 10 federal laws.

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30
free guides across
3 pillars
80%
of hospital bills contain
at least one error
10
federal laws we check
every bill against
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Hospital-specific guides
Find your hospital.
Know your rights.
We've published free billing error guides for 492 hospitals with 1 or 2-star CMS patient satisfaction ratings — organised by state, based on federal HCAHPS data.
Browse all 492 hospital guides →
492
hospitals covered
47
states
1★
CMS rated
Pillar 1 — Emergency & panic
Got a bill and don't know what to do?
If you just received a bill that's made your stomach drop, start here. Clear steps, plain language, your rights in plain English — for the moment you're in right now.
14 articles
Most read
I just got a hospital bill I can't afford — here's exactly what to do tonight
The 3 things to do in the next 24 hours, your legal rights in plain English, and a step-by-step process from itemized bill request to formal dispute.
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My insurance denied my claim — step by step guide to fighting back
More than half of all denied claims that are appealed get reversed. Here's the exact process — documents, deadlines, and what to say.
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Got a surprise $10,000 ER bill? Here's what patients don't know
Federal law may limit what you actually owe — regardless of which hospital treated you or whether they're in your network.
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Hospital sent my bill to collections — what are my rights and options
Sending one letter can pause all collection activity while you review the bill for errors. Here's how.
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My medical bill is wrong but the hospital won't fix it — what to do
The billing department is not the final word. Here's the escalation ladder — from supervisor to compliance office to state regulators.
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Can a hospital really garnish my wages for a medical bill?
Yes — but only after a long process, and in several states not at all. Here's how garnishment actually works and how to stop it.
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Medical bill went to collections — will it destroy my credit score?
The rules changed significantly in 2023. Medical debt under $500 no longer appears on credit reports at all.
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I was billed for a procedure I never had — how to prove it and get a refund
One of the most common billing errors. Your medical records are the evidence — here's exactly what to request and how to use it.
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Out-of-network surprise bill: your rights under the No Surprises Act explained plainly
Federal law protects you from being billed out-of-network rates by providers you didn't choose. Here's what it covers.
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Ambulance bill for thousands of dollars — why it happens and how to fight it
Ambulance billing is largely unregulated federally. Here's why the bill is so high and what you can actually do about it.
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My doctor is in-network but the hospital isn't — am I responsible for the bill?
One of the most common billing traps. Here's when the No Surprises Act protects you and when it doesn't.
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Insurance company keeps stalling my claim — how long do they legally have to respond?
Federal law sets strict deadlines for claim processing. Here's what they are and how to hold your insurer accountable.
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Got a bill years after my procedure — do I still legally owe it?
The statute of limitations may mean you don't. Here's what you must never do with an old medical debt.
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Hospital threatening to sue me over a medical bill — what happens next
A threat and an actual lawsuit are very different things. Here's what your options are and what you must not ignore.
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Pillar 2 — How to fight back
Ready to take action? Start here.
You know something is wrong. These guides give you the exact tools — templates, scripts, step-by-step processes — to dispute errors, negotiate bills, and hold hospitals and insurers accountable.
10 articles
Template included
How to Write a Medical Bill Dispute Letter That Actually Works
The exact letter format that gets escalated to compliance — not filed and forgotten. Includes a full copy-paste template with statute citations.
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How to Read Your Explanation of Benefits — What Every Line Means
Your EOB determines what you actually owe — not the hospital's bill. Here's how to read every column and use it in a dispute.
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How to Request Your Medical Records — and What to Look For
Your medical records are the ground truth of your visit. Every legitimate charge must have documentation. Here's how to get them and use them.
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What Happens After You Send a Dispute Letter — The Hospital's 30-Day Obligation
The clock starts when they receive it. Here's what hospitals are legally required to do — and the escalation path when they don't do it.
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State by state
How to File a State Insurance Commissioner Complaint — State by State Guide
One of the most effective and least-used levers in a billing dispute. Filing a complaint often resolves issues in days that took months without one.
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How to File a No Surprises Act Complaint with CMS — Step by Step
Providers who illegally balance-bill face $100/day penalties. Here's the exact complaint process and what happens to the provider.
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Medical Billing Codes Explained — What CPT Codes Actually Mean on Your Bill
CPT codes are the language of medical billing. Understanding them transforms you from a confused patient into someone who can verify their bill.
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Scripts included
How to Negotiate a Hospital Bill Down — Scripts and Tactics That Work
Hospitals negotiate bills every day. Here's the right approach, what to say, and how to get a meaningful reduction — with word-for-word scripts.
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What Is a Chargemaster and Why Your Hospital Bill Starts at Fiction
The chargemaster is the source of most billing confusion. Here's why the price on your bill is a list price nobody pays — and what number you actually owe.
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How to Read a Hospital Itemized Bill — Line by Line Walkthrough
The itemized bill is where errors hide. Here's how to read every section, what revenue codes mean, and the comparison that catches most errors.
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Pillar 3 — Procedure guides
Billing errors specific to your procedure.
Different procedures produce different billing errors. These guides go deep on the specific errors that affect ER visits, surgeries, cancer treatment, childbirth, and mental health care.
5 articles
ER Visit Billing Errors — What You Should and Shouldn't Be Charged
Emergency rooms generate multiple separate bills, high-value E/M codes, and out-of-network providers. Here's what errors look like and how to catch them.
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Surgery Billing Errors — The Most Common Charges That Shouldn't Be There
The global surgical package, unbundling violations, anesthesia time, and assistant surgeon rules — the errors that cost surgical patients the most.
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Cancer Treatment Billing Errors — Why These Bills Are the Most Error-Prone
Chemotherapy drug codes, infusion time billing, out-of-pocket maximums, and prior authorization failures. How to protect yourself during treatment.
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Childbirth and Maternity Billing Errors — What New Parents Are Routinely Overcharged For
The global obstetric package, newborn billing errors, epidural out-of-network charges, and newborn screenings that should cost nothing.
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Mental Health Billing — The Parity Law Violations Most Insurers Hope You Don't Notice
Federal law requires mental health coverage equal to physical health coverage. Most insurers violate this. Here's how to identify it and fight back.
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