Medical Bill Dispute Letter
Letter disputing a medical bill — wrong amount, billed in error, services not rendered, or insurance not applied.
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Jordan Alex Taylor
482 Elm Street, Apt 3B, Portland, OR 97214
Phone: +1 503 555 0118
Email: jordan.taylor@example.com
Date: May 4, 2026
OHSU Hospital — Patient Financial Services
P.O. Box 4500, Portland, OR 97228
Re: Disputed Bill
Account / Patient ID: PT-2026-118432
Bill date: April 15, 2026
Date(s) of service: 2026-03-08
Total billed: $4,280.00
Amount disputed: $1,840.00
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To Whom It May Concern,
I am writing to formally dispute the bill referenced above. The dispute category is:
► Insurance was not properly applied / claim never submitted
DETAILED EXPLANATION
On 2026-03-08 I was seen at OHSU for an MRI of the right knee, ordered by Dr. Lin Chen. My BlueCross BlueShield Oregon plan was provided at intake and verified by the front-desk staff (insurance card scanned, eligibility confirmed). The bill dated 2026-04-15 (account PT-2026-118432) shows the full charge of $4,280 with no insurance adjustment applied.
My insurer's online portal confirms NO claim has been received from OHSU for the date of service. Per my plan benefits, this MRI is covered at 80% after a $750 deductible (which I have already met), making my expected responsibility approximately $850, not $4,280.
I am disputing $1,840 of the $4,280 — the amount above what my plan responsibility should be. Please submit the claim to BlueCross BlueShield Oregon and reissue a corrected bill once the EOB is received.
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REQUESTED ACTION
1. Suspend collection activity on this account pending dispute resolution.
2. Submit the claim to BlueCross BlueShield Oregon for processing.
3. Issue a corrected bill reflecting the insurer's EOB allowance and my actual responsibility under the plan.
4. Confirm in writing within 30 days that the dispute has been received and is under review.
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LEGAL NOTICE
This dispute is submitted under the federal Fair Debt Collection Practices Act (FDCPA, 15 U.S.C. §1692g) where applicable, and under any state medical-billing dispute statutes that apply. I respectfully request that:
• All collection activity on this account be suspended pending resolution.
• This account NOT be reported to any consumer reporting agency during the dispute period (per the National Consumer Assistance Plan and 2017 NCAP requirements that medical debt under $500 not be reported, and that medical debt not be reported until 180 days after referral).
• If insurance was not properly applied, the No Surprises Act (45 CFR Part 149, effective January 1, 2022) requires good-faith estimates and prohibits surprise out-of-network billing in many circumstances. Please confirm the bill complies with the Act.
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ATTACHMENTS
1. Copy of the disputed bill (account PT-2026-118432, date 2026-04-15).
2. Insurance card (front and back).
3. Screenshot from BCBSOR portal showing no claim received.
4. Estimate of benefits provided pre-MRI showing expected $850 responsibility.
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I am sending this letter via Certified mail with return receipt to ensure receipt is documented. Please respond in writing within 30 days. I prefer all communication regarding this dispute be in writing, with phone calls limited to clarification only.
Thank you for your prompt attention.
Sincerely,
_______________________________ Date: ____________________
Jordan Alex Taylor
About this template
Medical billing errors are widespread — multiple studies (CMS, Medical Billing Advocates of America, and others) have estimated 30-80% of hospital bills contain at least one error, and an even higher fraction of complex bills do. The most common categories: insurance not properly applied (the claim was never submitted, or was submitted to the wrong payer), incorrect CPT/HCPCS coding (the wrong code charges more), duplicate billing (same service billed twice), services billed that were never rendered, and out-of-network charges that should have been in-network under network rules. The federal No Surprises Act (effective January 2022) prohibits surprise out-of-network billing in many circumstances — emergency services, non-emergency services at in-network facilities by out-of-network providers (like anaesthesiologists or radiologists), and air ambulance — limiting patient responsibility to the in-network amount. State laws often add protections. The most effective dispute strategy: (1) put it in writing, (2) be specific about the dispute category and the dollar amount, (3) cite the supporting evidence (EOB, prior estimate, no-claim-on-file from insurer), (4) request specific actions (suspend collections, resubmit claim, reissue corrected bill), and (5) send certified mail with return receipt so receipt is documented. Verbal disputes are routinely lost or ignored. Collections should be suspended during a written dispute under FDCPA principles. Medical debt has had improving consumer protections in recent years — the major credit bureaus (Equifax, Experian, TransUnion) now do not report medical debt under $500 and wait 180 days before reporting larger amounts.
When to use it
- Insurance was provided but not applied to the bill.
- Duplicate charges or services you did not receive.
- Coding errors making a service appear more expensive.
- Surprise out-of-network bills covered by the No Surprises Act.
- Estimates significantly under-stated pre-procedure.
- Collection notice on a balance you have already paid or disputed.
What to include
- Account/patient ID and bill date.
- Total billed and specific amount disputed.
- Dispute category and detailed explanation.
- Requested action (resubmit claim, reissue bill, suspend collections).
- Supporting attachments (EOB, prior estimate, insurance correspondence).
- Certified mail tracking number.