How to Dispute Medical Bills: A Patient's Guide to Fighting Incorrect Charges

Medical Billing Errors Are Extremely Common

If you have ever looked at a medical bill and thought something did not look right, you are probably correct. Studies consistently show that a significant percentage of medical bills contain errors. Some estimates suggest that as many as 80 percent of medical bills have at least one mistake. These errors range from simple clerical typos to systematic overcharges that add hundreds or thousands of dollars to your bill.

The medical billing system in the United States is extraordinarily complex. Bills pass through multiple hands, including the provider's billing department, coding specialists, insurance companies, and third-party collections agencies. At each stage, errors can be introduced. The good news is that you have the right to dispute incorrect charges, and doing so successfully can save you a substantial amount of money.

Step 1: Request an Itemized Bill

The first thing you should do when you receive a medical bill is request an itemized statement. The summary bill that most providers send initially shows only a total amount due and perhaps a few broad categories. An itemized bill breaks down every individual charge: each test, procedure, medication, supply, and service, along with the corresponding billing codes.

You have the legal right to an itemized bill. Under the No Surprises Act and various state laws, providers must furnish one upon request. Call the billing department and ask for a detailed itemized statement that includes the date of each service, a description of the service, the CPT or HCPCS billing code, and the amount charged for each line item. This document is the foundation of any dispute, because you cannot challenge charges you cannot see.

Step 2: Check for Common Errors

With the itemized bill in hand, go through it line by line. The most frequent errors to look for include:

• Duplicate charges: The same procedure or service billed twice. This happens more often than you would expect, especially after hospital stays where multiple departments are billing independently.
• Upcoding: Being charged for a more expensive procedure or a higher level of service than what you actually received. For example, a routine office visit coded as a comprehensive consultation, or a standard room coded as a private suite.
• Unbundling: Procedures that should be billed together under a single code are instead billed separately at higher individual rates. This is a common practice that inflates the total.
• Services not received: Charges for tests, medications, or supplies that were ordered but never actually administered. Check your personal records against the bill.
• Incorrect patient information: Errors in your name, insurance policy number, or date of birth can cause claims to be denied by insurance, leaving you with a bill that should have been covered.
• Balance billing for in-network services: If your provider is in-network, they have agreed to accept the insurance company's negotiated rate. They should not be billing you for the difference between their list price and the negotiated rate.

If any of these errors appear on your bill, note the specific line items and billing codes. You will reference these in your dispute.

Step 3: Contact the Billing Department

Call the provider's billing department and explain the errors you have identified. Be specific: reference the line item, the billing code, the date of service, and the amount in question. Keep a log of every call, including the date, the name of the person you spoke with, and a summary of the conversation.

Many billing errors can be corrected with a single phone call. Billing departments deal with these issues regularly and often have the authority to remove or adjust charges on the spot. If the representative cannot resolve the issue, ask to speak with a supervisor or a patient advocate. Most hospitals have patient advocacy departments specifically to help resolve billing disputes.

Follow up every phone conversation with a written summary sent by certified mail or email. This creates a paper trail that protects you if the dispute escalates.

Step 4: Negotiate the Remaining Balance

Even after errors are corrected, you may face a legitimately large bill, especially if you were uninsured or if your insurance left a significant balance. Medical bills are almost always negotiable. Providers would rather receive a reduced payment than send the bill to collections and receive little or nothing.

Strategies for negotiation include asking for the cash-pay rate, which is often substantially lower than the billed rate for insured patients. You can also request a payment plan, which most providers will offer at zero interest. Another approach is to research the fair market price for the services you received using tools like Healthcare Bluebook or Medicare's fee schedule, then present that data as the basis for a reduced rate. If your financial situation is difficult, say so directly. Many providers have financial hardship policies but do not advertise them.

Step 5: Explore Financial Assistance Programs

Nonprofit hospitals are required by federal law to have financial assistance policies, often called charity care programs. These programs can reduce or eliminate bills for patients who meet certain income thresholds. You do not need to be at the poverty level to qualify; many programs cover patients earning up to 200 to 400 percent of the federal poverty level. Ask the billing department for the hospital's financial assistance application and fill it out even if you are not sure you qualify.

In addition, many pharmaceutical companies offer patient assistance programs for expensive medications. State and local governments may have programs that help with medical debt. Nonprofit organizations like the Patient Advocate Foundation provide free assistance to patients navigating billing disputes.

Protecting Your Credit

Medical debt can damage your credit score if it goes to collections. However, recent changes to credit reporting have provided some protection. As of 2023, paid medical collections are no longer reported on credit reports, and unpaid medical debt under $500 is excluded. Medical debt that is less than one year old is also excluded, giving you time to resolve disputes before your credit is affected.

If a medical bill has already gone to collections, you still have the right to dispute it. Send a written dispute to the collections agency requesting validation of the debt. They are required to provide proof that the debt is legitimate and accurate. If they cannot, the debt must be removed from your credit report.

Statutes of Limitations on Medical Debt

Every state has a statute of limitations on how long a creditor can sue you to collect a debt. For medical debt, this ranges from 3 to 10 years depending on the state. After the statute of limitations expires, the debt is considered time-barred, and a creditor cannot successfully sue you to collect it. Be aware, however, that making a partial payment or acknowledging the debt in writing can restart the clock in some states.

Keeping Everything Organized

Disputing medical bills requires careful record-keeping: itemized statements, correspondence with billing departments, insurance explanations of benefits, and financial assistance applications. Having all of this documentation organized and accessible makes the process far more manageable. Tools like CaseCraft Prep Kits and SafeClaim can help you assemble and track your medical billing documents, ensuring that nothing is overlooked as you work through the dispute process.