Guide
How to Screen Subcontractors Against OIG
By Keelstar Team · Updated July 11, 2026
The short answer
Your organization remains exposed when an excluded party performs work through a subcontractor — even if your direct vendor cleared screening. Require every prime vendor to flow down exclusion screening obligations to subcontractors, and independently verify high-risk downstream parties against the OIG LEIE yourself. Screen subcontractor's legal names, DBAs, and key principals before they perform any federal program-connected work. Include screening and notification clauses in prime vendor contracts: subcontractors must be cleared before engagement, prime vendors must notify you of exclusion events, and you retain audit rights to subcontractor screening records. Re-screen subcontractors on the same schedule as direct vendors in the same risk tier. Prime vendor attestation alone does not satisfy CMS audit expectations.
Why subcontractor screening matters
Excluded parties often reach federal healthcare programs through layers of contracting. A cleared billing vendor may subcontract coding work to an excluded individual. CMS and OIG expect providers to look through the chain — especially when subcontractors perform services that would be billable if performed directly.
Identify in-scope subcontractors
Focus on downstream parties performing work connected to federal program items or services.
- Subcontractors performing clinical or billing services
- IT subcontractors with claims or EHR access
- Cleaning or facilities vendors in clinical areas when tied to program requirements
- Transportation and home health subcontractors in your network
- Offshore subcontractors supporting revenue cycle work
Flow-down contract requirements
Prime vendor contracts should require subcontractors to complete OIG LEIE screening before performing work, re-screen on the schedule defined in your policy, and notify the prime vendor and your organization of any exclusion match. Include your right to audit subcontractor screening records and to terminate for screening failures.
Independent verification vs. attestation
Prime vendor attestation that subcontractors were screened is a starting point, not the finish line. For high-risk subcontractors, run your own LEIE search and retain dated evidence. Request subcontractor names and ownership details during vendor onboarding — do not wait until an audit sample request.
Re-screening subcontractors on schedule
Subcontractors excluded after initial clearance create the same exposure as direct vendor exclusions. Include known subcontractors in your monthly or quarterly re-screen batches alongside direct vendors. When prime vendors change subcontractors, treat it as a trigger event requiring immediate screening before work continues.
Frequently asked questions
- Am I liable if my vendor's subcontractor is excluded?
- Yes, potentially. Federal rules prohibit payment for services furnished by excluded parties, including through subcontractors. Your organization should verify downstream screening for high-risk relationships.
- Should I maintain a subcontractor roster?
- Yes, for vendors where subcontractors perform billable or patient-facing work. Request subcontractor names from prime vendors and screen or verify screening before work starts.
- What contract language flows down screening requirements?
- Require prime vendors to screen all subcontractors against the LEIE before engagement, re-screen on your schedule, notify you of matches, and provide screening evidence upon request.
- Do staffing agency subcontractors need separate screening?
- Screen the agency and verify the individual placed worker. Agency-level clearance does not automatically cover every placement — re-screen individuals on your employee cadence.
Related guides
Put this into a monitored workflow
Exclusion Monitor handles this continuously — with reminders and an audit trail.