Brellium is the AI compliance layer for healthcare - reviewing 100% of patient charts in real time so errors get caught before a payor, an auditor, or a patient ever finds them.
It is 2 a.m. and a behavioral-health clinic in another time zone has just closed out its last visit of the day. The therapist logs off. The note is saved. And then - quietly, without anyone watching - Brellium reads it. It checks the session length against what was billed, scans for a copy-pasted paragraph from last week, confirms the coding holds up, and flags one line that could trigger a denied claim. By morning, the clinic has a fix instead of a problem.
This is the unglamorous frontier of healthcare AI. Not a chatbot diagnosing your rash, but software doing the work no human team has ever had time to finish: looking at all of it. Most compliance teams sample five or ten percent of charts and hope the rest behave. Brellium audits everything.
Every visit produces a chart. Every chart carries a claim. And every claim can be denied, clawed back, or audited months later if the paperwork does not line up with the care. For a large provider organization, that is hundreds of thousands of documents a year, each a small landmine of missing notes, wrong codes, and contradictions.
The traditional answer is a quality team with a spreadsheet, reviewing a thin slice of charts after the fact. It is slow, it is expensive, and it catches problems long after the money - and sometimes the clinical opportunity - is gone. The irony is hard to miss: an industry built on measurement was measuring almost none of its own paperwork.
Rosen knows the failure personally. Before Brellium, a misdiagnosis tied to a documentation gap cost him roughly two years. He came away convinced the problem was not bad clinicians - it was the absence of a system that could see every chart, every time.
In 2022, Rosen teamed up with Henry Kasa, Max Katzman, and Alex Le Tu around a bet that sounds obvious only in hindsight: if AI can read clinical language, it can audit clinical documentation - not a sample of it, but the whole stack. The hard part was never the ambition. It was making the output trustworthy enough that a compliance officer would stake real money on it.
Co-Founder & CEO. The patient-turned-founder whose own misdiagnosis became the company thesis.
Co-Founder, CTO/COO. Building the engine that turns messy charts into structured, defensible findings.
Co-Founder & Head of Engineering. Keeping accuracy high at the scale of millions of charts.
Co-Founder. Part of the founding team that took the bet from idea to platform.
Brellium plugs into a provider's EMR and runs each chart against custom quality, coding, and billing rules. When something is off, it does not just flag it - it explains the issue and tells the clinician how to fix it, often before the claim goes out. The boldest piece is the guarantee: if Brellium approves a chart and a payor later claws the money back, Brellium covers it. Compliance software that puts its own money where its findings are.
Reviews 100% of charts against custom rules with real-time alerts and clear fix instructions.
Validates medical-decision-making and E/M coding so documentation stays accurate and defensible.
Catches issues before billing - and covers the cost if an approved chart is later denied.
Org-wide dashboards with provider scorecards and compliance trends over time.
Sends personalized, actionable feedback to clinicians so the next chart is cleaner.
Assembles evidence and drafts compliant responses when a payor comes knocking.
Spots clinical risks - like a declining patient - and escalates to the right team.
Zach Rosen, Henry Kasa, Max Katzman, and Alex Le Tu start Brellium in New York, betting AI can audit clinical documentation end to end.
Brellium lands behavioral-health, mental-health, ABA, and hospice providers, and begins auditing charts at scale across customer EMRs.
The platform crosses millions of audited charts; Lightfully reports an 87% cut in auditing time, DoubleCare ABA an 80%+ cut in QA cost.
First Round Capital and Left Lane Capital co-lead, with Menlo Ventures, Digital Health Venture Partners, Kearny Jackson, Necessary Ventures, and a roster of digital-health angels.
Compliance is a category where vendors love adjectives and customers want receipts. Brellium's pitch survives the skeptic test because its early customers can point to time and money saved - not vibes.
The customer list reads like a tour of modern digital health, spanning mental health, therapy, autism care, and hospice:
It would be easy to file Brellium under "revenue protection" and move on. The founders frame it differently. Their stated mission is to help providers deliver measurement-based, clinically accurate, and compliant care - which, translated, means: when the documentation is right, the diagnosis is more likely to be right too. The clawback savings are real, but they are downstream of something more basic. A chart read carefully is a patient seen clearly.
That is also why Rosen's origin story matters beyond the press release. Brellium is not selling auditing because auditing is a nice business. It is selling auditing because the founder lived what happens when no one is reading.
Healthcare is drowning in documentation and short on people to review it - a gap that only widens as care moves online and volumes climb. Software that can read every chart, in every specialty, in real time is not a luxury in that world. It is infrastructure. Brellium is betting that "we sample a few charts and hope" will look, in a few years, the way "we balance the books once a quarter" looks to a modern finance team: quaint, and slightly alarming.
Whether Brellium becomes the default layer or simply proves the category is possible, the direction is set. The question is no longer whether AI should read clinical charts. It is why anything important was ever left unread.
The therapist who logged off hours ago will never know the line that almost cost a claim, because by the time she signs in, it is already fixed. That is the whole idea - to make the catch invisible, the denial that never happened, the diagnosis that landed the first time.
Brellium did not invent the chart. It just decided someone should finally read all of them.