When a school district, EMS agency, or specialty clinic evaluates a billing partner, the conversation almost always turns to one question: how do you charge? It sounds simple, but the answer shapes everything about the relationship, from how your costs scale to whether your billing company is motivated to chase every last dollar. Most medical billing companies price their services in one of two ways, a percentage of collections or a flat fee, and understanding the difference helps finance leaders compare vendors on more than a single headline number. Here is how each model works, where each fits, and what a decision maker should actually weigh.

The Percentage of Collections Model

The most common arrangement in medical billing is a percentage of collections. Under this model, the billing company earns an agreed percentage of the money it actually collects on your behalf. If it does not collect, it does not get paid, which is the defining feature of the approach.

The appeal to a finance leader is alignment. Because the billing company only earns when you get paid, its incentives point in the same direction as yours. A partner on a percentage model has a direct financial reason to work every denial, follow up on aging claims, and pursue the harder dollars that a less motivated biller might abandon. For organizations with variable or seasonal volume, the model also flexes naturally. Costs rise and fall with collections rather than staying fixed regardless of how the month went.

The trade off is that as your collections grow, the absolute dollars you pay grow with them. A high performing practice may find that a percentage adds up, which is why the actual rate and what it includes matter so much. Look for contract language that adjusts the rates based on volumes. However, the real question is not simply the percentage but the net revenue you keep after the billing company has done its work, because a partner who collects more at a slightly higher rate can leave you better off than a cheaper partner who collects less.

The Flat Fee Model

The alternative is a flat fee, where you pay a fixed, predictable amount rather than a share of collections. This can take the form of a set monthly fee or a fixed charge per claim or transaction, but the common thread is cost certainty.

The advantage here is budgeting. A fixed cost is easy to forecast, easy to defend in a budget meeting, and does not climb just because your collections had a strong quarter. For high volume operations where the cost per claim under a percentage model might exceed a flat rate, a flat fee can also work out more economical. Municipal budgets and district finance offices, which often value predictability above all else, sometimes prefer this certainty.

The caution with a flat fee is an incentive. When a billing company is paid the same regardless of how much it collects, the built-in motivation to chase every difficult claim is weaker. That does not mean flat fee billers underperform, but it does mean the quality of the partner and the clarity of the service agreement carry more weight, because the fee alone is not doing the work of aligning interests.

What Actually Determines Your Cost

Fixating on the pricing model alone is a mistake, because the model is only one input. What ultimately determines the value you get is how well the billing company performs. A partner with a high clean claim rate, fast turnaround, and disciplined denial management collects more of what you are owed, and that collected revenue dwarfs small differences in fee structure.

This is where a specialist separates from a generalist. New England Medical Billing, for example, submits 98% clean claims and has consistently delivered a 95% collection rate on ambulance billing, while its specialty clinic clients maintain less than 10% of accounts receivable past 90 days, compared with the more than 20% typical of the field. Numbers like those change the math on price entirely, because a few points of better collection performance can outweigh the difference between one fee model and another many times over.

The NEMB Approach to Cost

Rather than force every client into a rigid pricing box, NEMB built its whole business model around keeping costs down without sacrificing results. Most clinics and organizations that bill in-house carry an employed business office, which is costly and often one of the largest line items in the budget. NEMB’s virtual business model employs medical billing experts across multiple locations, tapping a deep pool of specialized talent while keeping costs low, and those savings are passed on to clients through competitive pricing.

Just as important, NEMB does not treat billing as one size fits all. As the company puts it, the first step is a conversation, because it wants to understand your unique business before recommending the best course of action and software. That means the pricing discussion happens in the context of your actual volume, specialty, and goals rather than a generic rate sheet, which is exactly how a finance leader should want it to work.

Choosing the Right Structure for Your Organization

There is no universally correct pricing model. A percentage of collections rewards a partner for collecting aggressively and flexes with your volume. A flat fee delivers budget certainty and can favor high volume operations. The right choice depends on your volume, your tolerance for variable cost, and above all the performance of the partner behind the price. 

If you are comparing billing companies and trying to see past the headline rate to the revenue you will actually keep, start with a real conversation about your numbers. Learn more about NEMB’s specialty clinic medical billing, explore its ambulance billing services, or contact the team to request a free consultation and find out which approach fits your organization best.

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