How to Write a Medical Bill Dispute Letter
How do I write a medical bill dispute letter?
Include your account number, the specific charges you are disputing with CPT codes and amounts, and a clear explanation of why each charge is wrong citing your EOB or medical records. Send it via certified mail with return receipt requested to create proof of delivery.
After you have identified an error on your medical bill, your first step should be a phone call to the provider's billing department. Often, simple errors can be corrected over the phone. However, if the billing department is uncooperative, or if the dispute is complex, you will need to escalate your complaint by writing a formal dispute letter. A well-written dispute letter creates a paper trail, shows that you are serious, and forces the provider and your insurance company to formally respond.
Key Components of a Strong Dispute Letter
Your letter should be professional, concise, and based on facts and evidence. It should include the following components:
| Component | What to Include |
|---|---|
| Your Information | Full name, address, and patient account number |
| The Date | The date you are writing the letter |
| Provider/Insurer Info | Name of provider and insurance company, including policy number |
| Clear Statement | One-sentence statement of why you are writing |
| Disputed Charges | List of specific charges, dates of service, and amounts |
| Reason for Dispute | Clear explanation with evidence from your records |
| Requested Resolution | What you want them to do (remove charges, send corrected bill) |
| Enclosures | List of all documents included as evidence |
| Your Signature | Hand-signed signature |
Dispute Letter Template
[Your Name]
[Your Address]
[Your Phone Number]
[Your Email Address]
[Date]
[Provider Billing Department Name]
[Provider Address]
Re: Dispute of Charges for Patient [Your Name], Account #[Your Account Number]
Dear [Billing Department Manager Name or "To Whom It May Concern"],
I am writing to dispute charges on my bill dated [Date of Bill] for services received on [Date(s) of Service]. My insurance provider is [Your Insurance Company Name], and my policy number is [Your Policy Number].
I am disputing the following charges:
- [List the first disputed charge, including CPT code and amount]
- [List the second disputed charge, including CPT code and amount]
I believe these charges are incorrect for the following reasons:
- For the first charge: [Explain why it is incorrect. Use evidence from your records.]
- For the second charge: [Explain why it is incorrect.]
Please investigate this matter, remove these incorrect charges, and send me a corrected bill.
I have enclosed copies of the following documents to support my dispute:
- The itemized bill in question
- The Explanation of Benefits from my insurance company
- Relevant pages from my medical record
Thank you for your time and attention to this matter. I look forward to receiving a corrected bill within 30 days.
Sincerely,
[Your Signature]
[Your Printed Name]
Tips for Success
Be Professional
Avoid angry or emotional language. Stick to the facts. A calm, professional tone is more effective than an angry rant.
Send Certified Mail
Send the letter via certified mail with a return receipt requested. This gives you proof that the letter was sent and received.
Keep Copies
Keep a copy of the letter and all enclosures for your records. You may need them for escalation.
Important: Evidence is Key
The strength of your dispute letter depends on the evidence you include. Your EOB, itemized bill, and relevant medical records are your most powerful tools.
Related Resources
When to Hire a Billing Advocate
When your dispute letter doesn't work, it may be time to call in a professional.
Using Operative Reports
Use your surgical records as evidence in billing disputes.
Using Visit Notes
Use your office visit documentation to fight upcoding.
The No Surprises Act
Federal protections you can cite in your dispute letter.
Need Help Writing Your Dispute Letter?
Our billing advocates can write a professional, evidence-based dispute letter on your behalf, citing the specific coding rules and regulations that support your case.
Frequently Asked Questions
What should a medical billing dispute letter include?
A medical billing dispute letter should include your full name, patient account number, date(s) of service, the specific line items you are disputing, the reason for each dispute (e.g., duplicate charge, service not rendered, incorrect code), copies of supporting documents (EOB, itemized bill, relevant records), and a specific request for correction or removal.
Who should I send my medical billing dispute letter to?
Address the letter to the provider's billing department and send a copy to your insurance company's claims department (if the dispute involves an insurer). For large hospitals, send a copy to the patient financial advocate or patient relations office. For disputes involving potential fraud, send a copy to your state insurance commissioner.
Should I send my dispute letter via certified mail?
Yes. Always send billing dispute letters via certified mail with return receipt requested. This creates a paper trail documenting the date your dispute was received. Keep copies of everything you send. Written disputes are much more effective than verbal complaints and provide legal protection if the matter escalates.