On Target Clinical — integrated EHR, billing, and payroll for behavioral health

Context

On Target Clinical is a behavioral-health operations platform: the clinical, accounting, and administrative teams of a behavioral-health practice working from a single system rather than five disconnected tools. The engagement covered the full module set: EHR, billing, payroll, accounting, and a webforms/e-signature flow.

Problem

The platform’s value lives at the seams. Billing has to reconcile against documented clinical work; payroll has to read timesheets that came from actual delivered care; accounting has to ledger both. Each module on its own is solvable; the integration is where most healthcare-ops products quietly fall apart at month six.

Approach

A microservices architecture with a React front end and a Java/Spring Boot service tier, with MySQL for relational records (billing, payroll ledgers) and MongoDB for documents and forms. The integration contract between modules was the load-bearing design decision: get the shared identifiers and event flow right and the modules compose; get them wrong and every cross-module report becomes a rescue project.

Solution

• React front end for the clinical, billing, payroll, accounting, and webforms surfaces.
• Java + Spring Boot service tier, organized as microservices per module.
• MySQL for transactional billing, payroll, and accounting records; MongoDB for forms, documents, and unstructured clinical notes.
• Laravel + PHP components for ancillary surfaces and a desktop application for in-clinic workflows.
• ExpressJS endpoints where lightweight Node services fit the integration pattern.
• Compliance posture aligned to behavioral-health data handling: admin team and clinicians configured the data structuring jointly with the engineering team.

Outcome

Above. The platform is live at ontargetconnect.com/clinical. The On Target product team advertises 100% billing collection rates as a product outcome. That figure is a client product claim, not an engineering metric, and is the operating success the integrated billing + clinical-delivery contract is built to support.