Our Mission

We're here to help
you fight back.

"We're here to help everyday people decode the chaos of medical billing and save money in the process."

Medical billing is one of the most opaque systems ordinary people are forced to navigate alone. NaviBill exists to change that — with plain-language explanations, guided tools, and the knowledge to spot errors before you overpay.

Why We Exist

The system is
complicated on purpose.

Insurance companies, doctors' offices, and laboratories all speak different billing languages — CPT codes, ICD-10 codes, EOBs, and adjustment codes. When there's a gap between them, you receive a bill for someone else's error.

NaviBill translates this system into plain English. We don't file appeals for you or provide legal advice — we give you the knowledge to advocate for yourself with confidence.

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Clear Navigation

Step-by-step guidance for every document type — EOBs, denial letters, provider bills, and more.

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Plain Language

No medical jargon, no legal fine print. We explain billing in terms that actually make sense.

Grounded in Reality

Every lesson is based on real billing situations — not hypothetical scenarios from a textbook.

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Empowerment Over Fear

Billing chaos thrives when patients feel too intimidated to ask questions. We change that.

Real-World Savings Stories

When patients
knew what to look for.

These are real billing situations — anonymized, but true. Small pieces of knowledge made the difference between overpaying and keeping hundreds of dollars.

$800
C-Section Billing Error

After a C-section delivery, a patient received a bill even though she had met her maximum out of pocket cost and had only gone to in-network providers. The charge was for cord blood collection, which she had declined at the hospital before the procedure. By comparing the CPT codes between the hospital bill and her EOB, she discovered that part of the procedure had been incorrectly coded for a different type of cord blood collection that was not covered — resulting in an $800 overcharge. She called the hospital billing department, referenced the correct codes, and the account was corrected and she never received another bill for the procedure.

💡 The lesson: Always compare CPT codes on your bill to the codes on your EOB. A single wrong digit can cost hundreds.
$675
Tongue Lesion Overpayment

A patient scheduled a routine tongue lesion removal and a prior authorization was approved for the service. On the day of the service, she was asked to pay $975 up front for the procedure in case the clinic did not get the amount they wanted from the insurer. This amount was based on an estimate of the service to be performed. The procedure performed was much more simple than what the clinic had used for their estimate. After requesting an itemized bill and comparing it to the EOB, she was able to request a refund for the difference between what was paid up front and the actual cost of the procedure. The clinic refunded $675.

💡 The lesson: If you pay in advance, always compare your EOB to what you paid once the claim is processed — and request a refund for any overpayment. Clinics will not always proactively issue one. This story also illustrates upcoding: upcoding is when a provider bills for a more complex or expensive service than what was actually performed. It is one of the most common billing errors, whether intentional or accidental, and can result in you paying more than you owe.
$450
Urgent Care Claim Error

A mother took her children for three different urgent care visits at the same location. The claims for each visit were submitted to insurance with the wrong identification information for the urgent care location. All of the claims were incorrectly processed as out of network. Under the family's health plan, each visit should have only cost a $25 copay, but instead they were charged $175 for each visit. By reviewing the EOB, calling the clinic's billing department and explaining the administrative error, the claims were resubmitted correctly and the family was refunded $450.

💡 The lesson: Always review your EOB. If a clinic or other facility is processed as out of network when it is listed as in network with your insurer, an error may have occurred and it is worth contacting the provider's billing department to investigate.
Denial
Prevented
Sleep Study Hold Letter

A patient received a hold letter for a sleep study claim — insurance needed additional documentation from the ordering physician. Without understanding what a hold letter meant, she might have waited and received a denial. Instead, she called her doctor's office immediately, the clinical notes were submitted within 48 hours, and the claim was approved — avoiding what would likely have been a bill for thousands of dollars.

💡 The lesson: A hold letter is not a denial — but it will become one if you don't act. Contact your doctor's office the same day.

A Note on What NaviBill Is and Isn't

NaviBill is an educational resource. We explain how the medical billing system works and help you understand the documents you receive. We do not file appeals, provide legal advice, or guarantee any specific outcome.

Every billing situation is unique. If you believe your rights as a patient have been violated, we encourage you to consult a licensed patient advocate, healthcare attorney, or your state insurance commissioner.

Ready to Navigate?

Use the interactive tool to get a step-by-step action plan for the document you have in hand.