Human patient advocates
Pricing depends on the provider. Medical Cost Advocate publishes a fee of 35% of negotiated savings. FairBill publishes a 20% success fee. MedBill Advocate publishes fixed and sliding-scale prices.
THE FEE MATH, BEFORE YOU SIGN
What does a medical bill advocate cost?
Medical-bill help is sold under several fee models, including a percentage of savings, fixed fees, and sliding scales. Some percentage models also include deposits or conditional minimums. Below are current public examples and the math to use when comparing a service for your own bill.
Check a medical billWHAT THE MARKET CHARGES
Four ways to get help with a medical bill.
Bill negotiation services
Resolve publishes a $249 deposit and 25% success fee for bills from $5,000 to $15,000, and a $499 deposit and 10% fee for bills over $15,000. Its page also lists special fee rules for lower savings.
Letters and case management
MedBill Advocate publishes a $14.99 template, a $65 custom letter, and full-service case management on a sliding scale from $100 to $500 based on the bill amount.
A flat subscription for an agent
Compares the bill with your insurance EOB for free. Steward Plus enables supported disputes, appeals, and follow-through for $15/month or $120/year while the plan is active. No per-case or percentage fees.
EXAMPLE FEE CALCULATION
$6,000 bill, reduced by $3,000. What does a success fee cost?
A 20% success fee is $600. A 35% success fee is $1,050. Deposits, minimums, and other conditions can change the total, so calculate the fee from the provider's complete terms. Steward checks the bill for free and can act under a $15/month or $120/year subscription without taking a percentage of the reduction.
HOW TO CHOOSE
Both models are legitimate, so know the fee before you sign.
Contingency is the right shape when you want someone else to carry all the risk on a huge, messy case. A flat fee can be the better shape when you want a predictable cost and want to keep the full reduction. Fixed and sliding-scale services offer another tradeoff. Start by learning what you owe: Steward compares the bill with your EOB for free, and you decide what happens next.
SOURCES AND METHOD
Public prices from the providers themselves.
Checked July 10, 2026. The 10% to 35% range describes the headline success-fee examples below, not every advocate or every possible fee. Resolve also publishes refundable deposits and conditional fee rules, and MedBill Advocate publishes fixed and sliding-scale options. Read the full provider terms before enrolling.
QUESTIONS
Advocate fees, answered
How much does a medical bill advocate charge?
Pricing varies by provider and case. In public pages checked July 10, 2026, headline success fees range from 10 to 35 percent of savings. Some models add deposits, minimum-fee rules, or other conditions. Other advocates publish fixed prices or sliding-scale fees instead of a percentage.
Is a percentage-of-savings fee fair?
It is a legitimate model with a clear tradeoff. Medical Cost Advocate and FairBill say there is no success fee if they find no savings, while Resolve says its deposit is refunded if it does not lower the bill. When a service succeeds, the fee rises with the reduction. Read the full terms because minimums and other conditions can change the total.
What does Steward cost for a medical bill?
Checking a bill is free: Steward compares it against your insurance EOB and shows you what is wrong and what to do. Steward Plus is $15/month or $120/year flat when Steward acts. There are no per-case or percentage fees, so Steward does not take a cut of a reduction.
Are there free ways to fight a medical bill?
Yes. You can compare an itemized bill with your EOB, follow the appeal instructions on the EOB, and contact the insurer or provider yourself without paying an advocate fee. The tradeoff is the time required to assemble documents, make calls, and follow the case.
When is an advocate worth it anyway?
A complex hospital stay with six figures in billing, active collections, or a dispute that needs a human on the phone for hours can justify professional help under any fee model. The point of the comparison is not that percentage advocates are wrong. It is that you should know what the fee will be before you agree to it.
See what the bill and EOB show, free.
Steward compares the documents at no cost. Steward Plus is $15/month or $120/year when you want the agent to handle a supported next step, and every dollar saved is yours.