It is acknowledged that Medicare rarely audits dentists because Medicare generally does not cover or pay for dentistry. However, doctors of dental surgery and doctors of dental medicine may perform far more complex surgical procedures than the examinations, cleanings, and fillings that are in the common perception of what a dentist does. Where Medicare does cover and subsequently audits services provided by dentists, the issues raised are generally complex and nuanced. Dentists who bill Medicare should be familiar with the Medicare claims appeal process and some of the issues specific to Medicare coverage of dental services.
The Medicare claims appeal process is a lengthy and complex 5-step process. After the provider receives a determination of claim denials and demand to repay an alleged overpayment, the first appeal step is Redetermination, often before the same Medicare contractor that issues the initial claim denials. The second step is Reconsideration before a different Medicare contractor. Thirdly, a review is performed by an Administrative Law Judge (ALJ), which may include a hearing – often telephonic – where the provider can present evidence and testimony. The fourth step is appeal to the Medicare Appeal Council, the highest adjudicatory body within the Department of Health and Human Services. The fifth and final step is to appeal the case to federal court, which is often limited in scope and may not be appropriate in every case. In can take several months, if not years, for a case to fully work its way through the Medicare claims appeal process, depending on the circumstances.
Medicare audits of services provided by dentists nearly always involve the “dental services exclusion.” By law, the Medicare program does not cover services performed in connection with the care, treatment, filling, removal, or replacement of teeth or structures directly supporting the teeth, which is generally considered to include the periodontium. Procedures on other parts of the mandible or maxilla may be covered where they are medically necessary and meet other coverage criteria. Because of the key distinction between procedures in connection with the teeth and structures directly supporting the teeth, dentists who bill Medicare may consider how they document procedures to clearly document procedures which may not be subject to the coverage exclusion. Procedures on the teeth and periodontium may also be covered where they are inextricably linked to a primary covered service. Further, Medicare contractors may mistakenly interpret the statutory coverage exclusion to mean that Medicare never covers any services provided by a dentist, simply because they are performed by a dentist. However, this assertion is generally inconsistent with the Social Security Act and Medicare guidance.
Dentists who choose to bill Medicare are in the unenviable position of being subject to both the administrative and bureaucratic issues inherent in Medicare audits, claim denials, and appeals applicable to all provider types, as well as a host of complex issues unique to their specialty that are rarely understood by the Medicare contractors conducting the audits. Dentists who choose to bill Medicare should exercise due care and be aware of the issues they may face.