Medicaid durable medical equipment audits turn on three records: the prior authorization on file, the prescribing provider's written order, and proof that the equipment reached the patient. Medicaid is state-administered, and each state writes its own DME manual, so the authorization threshold, the order's validity period, and the accepted delivery documentation differ from state to state. A DME supplier billing Medicaid in more than one state cannot treat one program's rule as the national default, and an auditor will not extend that courtesy either.
Prior Authorization and the Written Order Vary by State
The Centers for Medicare & Medicaid Services has encouraged states to offer Medicaid prior authorization for costly DMEPOS items, particularly for beneficiaries dually eligible for Medicare and Medicaid. CMS's own January 2017 bulletin on the topic notes that many states exclude dual eligible beneficiaries from that process, or require a Medicare denial first, before Medicaid will authorize the same item. Federal law requires Medicaid to pay secondary to other legally liable payers under Section 1902(a)(25) of the Social Security Act, and a 2016 regulation at 42 C.F.R. 440.70 bars states from treating Medicare's home-only coverage rule as a stand-in for Medicaid's broader coverage of medical equipment and supplies. The authorization period, the written order's validity window, and whether a verbal order can hold a claim open in the meantime are all set state by state within that federal floor. Texas Medicaid, for one documented example, authorizes most home health DME for up to six months at a time, and the provider must seek a new authorization once that six-month period ends. Prior authorization is one checkpoint inside a state's Medicaid audit, and a compliance officer working across state lines should confirm each state's own windows rather than assume one state's rule travels with the claim.
Proof of Delivery Is the Record Auditors Ask For First
The documentation pattern is consistent across state Medicaid DME programs even where the thresholds are not: a prior authorization, a signed order, and proof the item reached the patient. Texas Medicaid's DME, Medical Supplies, and Nutritional Products Handbook sets out what that proof looks like in its program: a delivery slip or invoice signed and dated by the patient or caregiver, or a dated carrier tracking document showing the shipping and delivery dates. A delivery the state cannot confirm becomes eligible for recoupment even after the claim already cleared prior authorization. Other states set their own thresholds and verification methods, but every program checks for the same thing: a record showing the equipment reached the person who needed it.
Prior authorization does not protect a Medicaid DME claim once an auditor cannot confirm the equipment was delivered.
What a Documentation Gap Can Trigger
A missing delivery record rarely stays a single-claim problem. A state Medicaid program can extrapolate a sampled error rate across the audit's full lookback period, demand recoupment on that total, and suspend a supplier's payments while the review is open, a suspension most states only lift through a good cause exception. The same prior-authorization-plus-proof-of-service logic reaches other Medicaid claim types, including home and community based services audits, and some states layer an OIG-coordinated review on top of their own audit, a pattern Illinois's Medicaid audit program follows. A pattern of unsupported claims across an audit sample can also support a civil False Claims Act referral, and serious conduct can expose a supplier's owners to OIG exclusion from federal health care programs. Every state's audit letter sets its own deadline to file an audit appeal, and that clock runs whether or not the supplier has finished gathering records to respond.
Health Law Alliance's attorneys have overseen 2,000+ audits and handled 5,000+ matters, with 25+ years of experience.
Why Early Legal Counsel Is Critical
It is critical that DME suppliers promptly retain experienced healthcare defense counsel upon receiving a Medicaid audit notice, document request, or recoupment demand. Early legal intervention can help structure an accurate response to the state's request, help avoid admissions that narrow the supplier's defenses later, and preserve the supplier's ability to appeal. Delaying representation until after the response deadline passes can significantly narrow all three.
How Health Law Alliance Can Help
Health Law Alliance's DME audit defense attorneys represent durable medical equipment suppliers nationwide against Medicaid prior authorization denials, written-order findings, and proof-of-delivery recoupment demands, in every state where they bill. If your company has received a Medicaid DME audit notice, document request, or recoupment letter, contact Health Law Alliance's DME audit defense attorneys for a free, confidential consultation.
