80% of hospital bills are wrong. The average American loses $3,500 without ever knowing it. Here's how to find every error and get your money back.
If you have a hospital bill sitting unpaid right now, do not pay it until you've checked for errors. Paying a bill does not mean you can't dispute it, but disputing before payment gives you significantly more leverage.
The Medical Billing Advocates of America estimates that 80% of medical bills contain errors. The U.S. Government Accountability Office found that Medicare alone overpaid hospitals by $28.7 billion in a single year due to billing errors.
This is not an accident. Hospital billing departments operate under enormous pressure to maximize revenue. Complex billing codes, multiple departments, and the sheer volume of services create an environment where errors — intentional or not — thrive.
A 15-minute consultation billed as a complex 60-minute visit. Hospitals assign more expensive procedure codes than what was actually performed.
Avg recovery: $1,200The same procedure, test, or medication billed twice — often under slightly different code variations so it's hard to spot without knowing what to look for.
Avg recovery: $850Charges for procedures, consultations, or supplies that were never actually performed or delivered. This occurs in 25% of audited bills.
Avg recovery: $670A single aspirin billed at $80. A saline drip at $700. Hospitals mark up medication costs by 300–800% above their actual acquisition cost.
Avg recovery: $420Charged at ICU rates ($2,000+/day) when you were in a standard room ($400/day). One of the most expensive per-day errors on inpatient bills.
Avg recovery: $1,800Procedures that should be billed together at a package rate are split apart and billed individually at higher combined cost. This is technically Medicare fraud.
Avg recovery: $560Anesthesia billed for more time than the procedure took. Operating room time rounded up to the next hour. Each extra minute costs $50–$200.
Avg recovery: $730Maria had a laparoscopic cholecystectomy (gallbladder removal). Her bill showed charges for physical therapy she never received, a medication listed four times under different codes, and a room rate at the surgical ICU level despite spending only 4 hours in recovery before being moved to a standard room.
Her audit identified $3,200 in documented errors. The dispute letter cited CPT codes 43239, 99232, and 99233 as incorrectly applied. The hospital's billing department corrected the bill within 19 days.
recovered in 19 days · Full refund applied to outstanding balance · No attorney required
David fell off his bike and broke his wrist. The ER visit took 3 hours. His itemized bill showed two separate X-ray charges for the same imaging session, a "trauma activation fee" of $800 despite his case being non-life-threatening, and a specialist consultation fee for a physician who never entered his room.
recovered in 23 days · Trauma activation fee waived · Phantom consult removed entirely
Our auditors check every line against Medicare rates, CPT code guidelines, and hospital billing regulations. Most bills we review have multiple errors.
Get a $19 Professional Audit →Steps 1–6 take most people 6–10 hours. Our auditors do all of this for you, cross-reference against our proprietary Medicare rate database, and deliver a complete dispute package in 24 hours for $19. Start your audit →
CPT (Current Procedural Terminology) codes are 5-digit codes assigned to every medical procedure. They determine what gets billed and how much. Understanding the most commonly abused codes can help you spot errors immediately.
| CPT Code | Description | Medicare Rate | Common Abuse | Flag |
|---|---|---|---|---|
| 99213 | Office visit, moderate complexity | $110 | Upcoded to 99214/99215 | HIGH RISK |
| 99232 | Hospital inpatient visit | $120 | Billed multiple times per day | HIGH RISK |
| 71046 | Chest X-ray (2 views) | $45 | Billed as separate views | WATCH |
| 93000 | Electrocardiogram | $20 | Duplicate billing | WATCH |
| 99291 | Critical care, first hour | $380 | Billed for non-critical patients | HIGH RISK |
| 36415 | Routine venipuncture | $3 | Billed at $40–$80 | HIGH RISK |
"Hi, my name is [NAME] and my account number is [NUMBER]. I've reviewed my itemized bill and identified several charges I'd like to dispute. I'm going to be sending a formal written dispute by certified mail today. Can you confirm the correct mailing address for the Patient Financial Services department and the name of the department head?"
"I am writing to formally dispute several charges on my bill dated [DATE], account number [NUMBER], for services rendered at [HOSPITAL NAME]. After reviewing my itemized statement against my Explanation of Benefits and the CMS Medicare fee schedule, I have identified [NUMBER] billing errors totaling $[AMOUNT]. I am requesting a corrected statement and, where applicable, a refund of any amounts already paid against these charges. Per federal billing regulations, I request a written response within 30 days of receipt of this letter."
Yes — and more people should. Paying a hospital bill does not waive your right to dispute errors. You can request a refund for overpayments caused by billing errors even after full payment.
Most states allow disputes up to 6 months after payment. Some allow up to 2 years. Hospitals are legally required to refund confirmed overcharges. The dispute process is identical — document the errors, send a formal letter, and request a refund to your original payment method or as a check.
By law, hospitals must respond to billing disputes within 30 days. If they don't respond, that itself is a violation you can report to your state insurance commissioner.
No. The vast majority of billing disputes are resolved without legal representation. A well-documented dispute letter citing specific CPT code violations is sufficient for most cases. Lawyers become relevant only for large amounts (typically $10,000+) where the hospital refuses to negotiate.
As of 2022, medical debt under $500 cannot be reported to credit bureaus. In 2023, the three major bureaus stopped reporting paid medical debt. While your dispute is in process, most hospitals will pause collection activity on the disputed amount.
Call the hospital billing department and say: "I am requesting my itemized statement as is my right under [your state] billing regulations." They must provide it, usually within 5–10 business days. If they charge for it, that fee is typically $10–$25 and is worth paying.
Technically yes — but in practice, a formal written dispute letter creates a paper trail that gives most hospitals pause. The Consumer Financial Protection Bureau (CFPB) has taken action against collectors who pursued disputed medical debts. Reference this in your dispute letter.
Our auditors handle everything: CPT code review, Medicare rate benchmarking, and a ready-to-send dispute letter. Most audits find multiple errors.
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