Medicaid Dental Audit Checklist: How to Prepare (And Pass)

Medicaid is the single largest payer of dental services in the United States. It's also the most aggressively audited. Medicaid Fraud Control Units (MFCUs), DMAP, and federal OIG reviews are all increasing in scope — and dental providers are a primary focus.

Types of Medicaid Dental Audits

• • Prepayment Review — Claims are held before payment pending documentation review. Common for new providers or flagged billing patterns.
• • Post-Payment Audit — Claims already paid are retrospectively reviewed. Results in recoupment (repayment) demands if documentation doesn't support the claim.
• • PERM Audit — Payment Error Rate Measurement audits conducted by federal contractors. Random but significant.
• • Fraud Investigation — MFCUs investigate intentional false claims. Can result in criminal charges.
• • Managed Care Organization (MCO) Audit — If you participate in a Medicaid managed care plan, the MCO may conduct its own reviews.

Medicaid Documentation Requirements You Must Know

Medicaid has stricter documentation standards than most commercial payers. The following are typically required for every claim, not just certain procedure types:

• • Patient's chief complaint or presenting problem documented at each visit
• • Clinical findings supporting the diagnosis (objective examination findings)
• • Treatment rendered — specific procedures, tooth numbers, surfaces
• • Provider signature and date on all clinical entries
• • Medical history and allergy documentation updated at each exam
• • For restorative: supporting X-rays must be in the chart and dated prior to treatment
• • For extractions: clinical justification beyond "patient request" required
• • For preventive services on children: documentation of caries risk assessment

The Medicaid Dental Audit Preparation Checklist

1. Provider Enrollment Verification: Confirm your NPI, provider number, and taxonomy codes are current with the state.
2. Fee Schedule Review: Verify you are billing at or below the Medicaid fee schedule — overbilling is an immediate red flag.
3. Service Limitations Check: Certain procedures have annual frequency limits; confirm you are not billing beyond them.
4. Prior Authorization Records: All services requiring prior auth have approved auth numbers documented in the chart.
5. Clinical Notes vs. Billed Codes: Pull a sample 20 charts: confirm the CDT code matches the documented procedure exactly.
6. Radiographic Documentation: X-rays are dated, legible, properly retained, and referenced in the associated clinical note.
7. Signature Audit: All clinical entries are signed by the treating provider — not administrative staff.
8. Treatment Plan Review: Treatment plans are on file, dated, and patient-signed where required.
9. Managed Care Eligibility: Patient eligibility was verified on or before the date of service through the MCO portal.
10. Staff Credential Review: All hygienists, assistants, and providers are working within their licensed scope.

What to Do If You Receive an Audit Notice

• • Do not ignore it — you typically have 30 days to respond and missing deadlines escalates the audit.
• • Pull all requested patient charts immediately and review them against the criteria listed above.
• • Engage a healthcare attorney who specializes in Medicaid audits before responding to the state.
• • Do not alter or amend charts after receiving an audit notice — this constitutes obstruction.
• • Respond in writing to every request; document all communications with the audit agency.

The best Medicaid audit strategy is preventing one. Practices using dental compliance monitoring software like TrustOral conduct ongoing documentation quality reviews — catching the gaps that Medicaid auditors find before they ever request a chart.