We Built Behavioral Health Billing That Actually Works. Here’s Why.

Behavioral health practices lose up to 20% of their revenue to billing problems. Mental health claims get denied at two to three times the rate of primary care. Authorization tracking eats hours that should go to clients. And most billing vendors learned behavioral health billing by Googling it after they signed your contract.

We’ve processed over $2.1 billion in behavioral health claims for customers all across the United States. We’ve watched this pattern repeat for years. So we built a behavioral health RCM service that actually fits inside PIMSY and is not bolted on from the outside.

This isn’t a press release. This is us telling you what we built and why.

Behavioral Health Billing Is Broken in Ways Most Vendors Don’t Understand

Here’s the thing about behavioral health billing: it’s not just “medical billing, but harder.” It’s a fundamentally different animal.

The numbers back it up. Thirty percent of mental health claims were denied in 2023, compared to only 19% of claims in other specialties. And 60% of behavioral health providers say their denial rates went up in 2024. Nathan Boyd, PIMSY’s CEO, has spent over fifteen years building technology tools and billing services specifically for mental and behavioral health providers. 

“We’re rolling out a billing service specifically for mental health to fix this: mental health providers are generally already underpaid, and it is getting increasingly difficult to run a growing practice. Combining software and industry expertise in mental health billing is an obvious way to support our customers. With our tools and expert staff, we can reduce denials and increase practice revenue, which is exactly what our providers need to focus on delivering more care.”

Why? Because mental health billing services require specialized knowledge that most RCM vendors don’t have: psychotherapy modifiers, group billing rules, state-specific Medicaid requirements like MaineCare, and authorization workflows that change by payer and by service type.

Most billing companies retrofit primary care workflows for behavioral health. That’s wrong. And it’s costing you money.

Why We Built This, and Why Now

We didn’t wake up one morning and decide to launch an RCM product. We got here because our customers kept telling us the same story.

“We love PIMSY for clinical work. But our billing vendor doesn’t understand what we do.”

“We hired an in-house biller, she left, and now we’re three months behind on claims.”

“Our RCM company treats us like a primary care practice that happens to do therapy.”

After processing 11.5 million behavioral health claims, we’ve seen what works and what doesn’t. The pattern was clear: revenue cycle management for behavioral health requires people who live in this world, not generalists reading from a script.

We built behavioral health RCM directly into the EHR, not as a separate product and not as a partnership with a third-party vendor, because that’s where the clinical data already lives. Billing should flow from documentation, not operate in a parallel universe.

How It Actually Works

Most RCM setups work like this: your clinicians document in one system, someone re-enters that data into a billing system, and you cross your fingers.

PIMSY’s approach is different. Claims generate directly from clinical notes, with no re-keying, no copy-paste, and no integration that break your workflows.

Here’s what that looks like in practice:

• Front-end claim scrubbing catches errors before submission. Our first-pass acceptance rate sits at 98.1%, compared to the 85% industry average.
• Real-time eligibility verification checks coverage before sessions happen. Batch checks let you verify entire caseloads at once.
• Proactive authorization alerts flag expiring auths before they expire, not after you’ve already delivered the service and can’t bill for it.
• 835 auto-posting reconciles payments automatically. Remember that billing coordinator in Portland spending 20 hours a week on Medicaid posting? One of our customers cut that to one hour, because the system handles what a human shouldn’t have to.

Our Pricing Model Puts Us on the Same Side of the Table

Most behavioral health billing arrangements put you and your vendor on opposite sides. You pay a flat fee whether they perform or not. Or you hire in-house at $50-$65,000 a year (before taxes and benefits), plus software, plus the risk that your one billing person quits and takes all the institutional knowledge with them.

We charge a percentage of collections, which varies depending on practice size and payer mix.

If you don’t get paid, we don’t get paid. That’s not a slogan; it’s how we structured the business. Our incentives align with yours because our revenue depends on your revenue. We only win when your behavioral health billing actually works.

And if you’ve already got a quote from another behavioral health RCM vendor, we’ll match it. Price match guarantee. We’re that confident in what we deliver.

The Numbers

We could write a whole post about metrics. But here’s what matters:

• 96% Net Collection Rate. The industry average is 79%. That gap isn’t marginal; for a mid-sized practice, it can mean tens of thousands of dollars a year.
• 26-Day Sales Outstanding. Industry average: 46 days. You get paid faster, your cash flow stabilizes, and you stop wondering when revenue will show up.
• 50% denial reduction for practices already using PIMSY. Half the denials, gone, because behavioral health claims management starts with getting the claim right the first time, not reworking it after the fact.

For a solo LCSW in rural Maine, that might mean an extra few hundred dollars a month that wasn’t falling through the cracks. For a 30-clinician agency in Chicago, it’s a completely different financial picture.

Built for Behavioral Health. Period.

We didn’t build a billing product and then figure out how to sell it to behavioral health. We’ve spent nearly two decades inside this space. We know the difference between a 90837 and a 90834. We know that group billing for IOP programs requires a different workflow than individual outpatient sessions.

That knowledge is baked into the system and into the people running it. Our CEO, Nathan Boyd, has spent his career building practice management software for mental health providers and has been a mental health care provider. Our team has over a century of combined experience in mental health billing.  

Your practice deserves behavioral health RCM that was designed for how you actually work, not a generic billing engine with a behavioral health sticker on it.Want to see the numbers for your practice specifically? Schedule a conversation. No pitch deck, no 47-slide presentation, just a real conversation about what your billing looks like now and what it could look like with PIMSY handling it.