Compliance and Clarity: Navigating the Realities of Medicaid in Dentistry

For many dental professionals, the word “Medicaid” evokes a complex mix of professional duty and administrative fatigue. At their core, Medicaid and the Children’s Health Insurance Program (CHIP) are joint federal and state programs that assist with medical and dental costs for individuals and families with limited income and resources. Navigating Medicaid isn’t just about the “why” – it’s also about the “how.” To help your dental team achieve both compliance and clarity, let’s break down some of the critical rules governing participation, billing, and patient responsibility.

Since Medicaid and CHIP benefits are managed locally, credentialing is required on a state-by-state basis, and the specific benefits offered can vary significantly across state lines. Medicaid patients can seek care from non-participating providers, however, these providers cannot submit Medicaid claims or receive program reimbursement. In these cases, the patient is financially responsible for the full cost of care. In other circumstances, recommended treatment may not be covered by the patient’s specific plan. In these instances, patients may request non-covered services be performed. This would require notifying the patient in writing of the non-covered service(s) prior to treatment and obtaining a signed waiver stating the patient is solely responsible for payment.

Financial management for these patients requires a deep understanding of the hierarchy of coverage and the rules for collection.

Medicaid is almost always the “payor of last resort,” meaning any additional insurance — whether a group employer plan or an individual policy — must be billed first. Notably, Medicaid patients are never responsible for deductibles or copayments related to additional benefits provided through dual coverage. If Medicaid is the only plan, providers should always verify eligibility and copay requirements before proceeding with treatment. When it comes to the Medicaid copay itself, federal law prohibits a provider from withholding treatment during a visit due to a prior or current copay balance. While the office may request payment and even utilize payment plans or collection agencies in accordance with state guidelines, the office cannot enforce collection at the time of service by refusing care. 

Timely filing is paramount.

Many states only allow 12 months to file an initial claim, and in turn, 24 months to resolve outstanding claims. If a claim is not filed properly within these windows, it is viewed as a provider error, and the patient cannot be billed for the services rendered. Furthermore, providers must be prepared for retroactive coverage scenarios, as this can happen more frequently than one might think. If a patient presents a Medicaid card after treatment is completed and/or their Medicaid coverage is backdated, the contracted provider must submit the claim if it falls within the timely filing period, and any previous payments made by the patient for that covered service must be promptly reimbursed.

Managing patient attendance is a unique challenge under Medicaid.

The Centers for Medicaid and Medicare Services (CMS) strictly prohibits charging patients for broken, missed, or canceled appointments. However, your practice can still maintain administrative oversight by utilizing codes D9986 (missed appointment) and D9987 (cancelled appointment). These should be submitted with a zero fee, allowing you to formally track and report a patient’s history of noncompliance to the state without violating any billing regulations.

To help mitigate high no-show rates, many states offer dedicated transportation services for Medicaid patients, though this benefit is reserved for covered services rather than elective or non-covered visits. Coordinating this resource requires a bit of foresight, as transportation typically needs to be reserved at least three days prior to a standard appointment. For more urgent needs, some transportation brokers offer an expedited three-hour notice window for emergency dental visits, providing a vital tool to ensure your most vulnerable patients can access the care they need on time. CDT code D9991 (Dental Case Management – Addressing Appointment Compliance Barriers) may be used to document solving transportation challenges or other barriers for these patients.

For some, navigating the Medicaid landscape can feel like performing a root canal in a hall of mirrors. Achieving clarity is about understanding protocols that turn administrative hurdles into a streamlined workflow. By staying diligent with documentation, understanding the nuances of state-specific benefits, and utilizing tools like D9986/D9987 for tracking patient compliance, you protect your practice’s financial health while serving the patients who need you most.

To read more on Medicaid, including top Medicaid questions and answers, see our Medicaid section in the 2026 publication of Dental Administration with Confidence.

Source:

Practice Booster (2026). Dental Administration with Confidence (pp. 152-158). 2025 eAssist Publishing, LLC.