BillAI by Rethink is an AI-driven revenue cycle management (RCM) solution purpose-built for ABA providers. Built on RethinkBH, the all-in-one ABA practice management software from Rethink Behavioral Health, it runs end-to-end billing for applied behavior analysis (ABA) practices from completed session to payment, with proactive AI claim tracking, an ABA-specific Business Rules Engine, and real-time dashboards on days in AR, denial rates, and AR aging. BillAI is available as ABA billing software your in-house team uses or as a managed billing service operated by RethinkBH.

Yes. Once clinicians (BCBAs and RBTs) complete session notes in RethinkBH, claims flow through built-in payer validations, claim submission through the integrated Stedi clearinghouse, claim tracking against expected milestones, automated correction on high-confidence errors, ERA payment posting, and denial follow up. Because clinical documentation, scheduling, and billing share one data layer, there is no manual re-entry or reconciliation between systems.

Proactive AI tracks every claim from submission to resolution against expected milestones. When a claim deviates, the system flags it, and high-confidence corrections run automatically without manual touch. Every day a stalled claim is caught sooner is a day removed from days in AR. Practices using BillAI report a 99% clean claims rate and reimbursement in under 30 days.

The Business Rules Engine runs on two layers. System Rules are maintained by RethinkBH across the entire customer network, so every practice benefits from collective intelligence on payer behaviors and error patterns, not just its own claims history. Custom Rules are configured at the practice level for your specific payers, your error patterns, and your resubmission requirements. Both layers learn continuously, and every corrective action updates the automated workflow, so the same error does not cost the practice twice.

Both run on the same BillAI technology stack: same proactive AI, same Business Rules Engine, same connected data layer. The difference is who operates it. With in-house BillAI, your billing team uses the billing software inside the all-in-one RethinkBH platform they’re already using. With Managed Billing Services, RethinkBH’s ABA-focused billing services team operates BillAI on your behalf while your leadership team retains real-time visibility into days in AR, denial rates, and AR aging dashboards.

BillAI uses Stedi as its integrated clearinghouse. RethinkBH handles payer enrollment as part of onboarding, so practices switching from a different clearinghouse do not manage that work themselves.

Yes. RethinkBH manages payer enrollment as part of onboarding, so your team is not handling enrollment paperwork during the transition.

Yes. BillAI operates on RethinkBH’s HIPAA-compliant cloud platform with SOC 2 Type II certified infrastructure. The same compliance posture that covers clinical data and EMR records covers billing data, because both run on a single connected platform.

Most billing teams keep institutional knowledge in the heads of senior billers. When those billers leave, the practice loses years of payer-specific learning. BillAI’s Business Rules Engine captures every payer rule, every error pattern, and every resubmission requirement in the platform itself, so a new biller on day one of onboarding has access to the same intelligence the senior biller built. The knowledge belongs to the practice, not the individual.