Charta Health Raises $55 Million Series B for AI Medical Chart Review

Charta Health has raised $55 million in Series B funding to expand its AI platform for medical chart review and to build a common standard of billing accuracy for healthcare providers and insurers. Insight Partners led the round. Existing investors Madrona, Bain Capital Ventures, and South Park Commons participated, along with QuantumLight.

The company applies AI to unstructured clinical information: physician notes, scanned orders, laboratory results, and images. Its technology reviews medical records to determine whether documented care supports the codes used for billing. That question sits at the center of one of the most expensive friction points in American healthcare.

Why does chart review matter?

Charta's core argument is simple. Providers and payers should resolve coding discrepancies before a claim is submitted, not after, through denials, audits, and appeals. Those administrative processes cost the U.S. healthcare system billions of dollars each year, according to the company.

The product works on both sides of the transaction. Charta for Providers reviews every chart before billing and checks the documentation against official coding guidance, payer rules, and an organization's clinical protocols. Findings appear inside electronic health record workflows, where a human approves them. The company says the platform produces consistent double-digit reductions in denial rates. It also gives compliance and medical leadership teams information about documentation gaps, recurring errors, and provider performance.

Who uses it, and where is the money going?

Charta already works with healthcare organizations including American Family Care, Grow Therapy, and Pediatric Associates Family of Companies. The new funding will improve the accuracy and intelligence of its provider technology and fund expansion into additional medical specialties.

The financing also supports Charta for Payers, a suite developed with one of the country's largest health insurers. That offering initially focuses on Medicare Advantage and Affordable Care Act Marketplace plans — two markets where coding accuracy directly shifts risk-adjusted payments.

The payer suite ships with six products:

• Retrospective hierarchical condition category coding
• Automated second-pass reviews
• Coder workflows
• Prospective risk-adjustment intelligence
• Audit preparation
• Quality care-gap detection

The technology can identify conditions that were documented but never coded. It also flags diagnoses that lack sufficient clinical support.

What is the bigger play?

Charta's longer-term objective is to give providers and insurers a consistent interpretation of the same medical record before reimbursement decisions are made. In effect, the company wants both sides of the market to agree on the record first, then argue about payment.

Jeff Horing, Co-Founder and Managing Director at Insight Partners, framed the investment in terms of that shared foundation. "Healthcare payments depend on the medical chart, and charting errors cause costly problems across the entire process. As payers and providers both adopt AI, we believe the opportunity lies in getting the underlying record, or the 'ground truth,' right before a claim is submitted. Charta pairs AI with customer-specific coding expertise and serves both sides of that market. We are excited to partner with Justin, Scott, and the team as they scale."

The bet behind the round is that AI adoption is spreading to payers and providers at once, and that whoever fixes the underlying record before submission — rather than litigating it afterward — captures value from both sides. If Charta's double-digit denial reductions hold across new specialties, the company will have a case that prevention beats appeals in healthcare billing.