By Trevor Biglin, Esq.
As Medicare’s annual Open Enrollment period begins, much of the attention naturally centers on beneficiaries evaluating their coverage options for the coming year. However, the decisions made during this period can have equally significant consequences for hospitals, physician groups, and other healthcare providers, particularly as Medicare Advantage organizations adjust their provider networks, participation requirements, and contractual arrangements.
With the 2027 coverage year approaching, healthcare organizations should be examining not only which Medicare Advantage plans their patients may select, but also whether their own providers, facilities, and practice locations will remain properly credentialed and recognized as participating providers.
For many organizations, overlooking these details can result in interrupted patient relationships, unexpected claim denials, and substantial reimbursement delays.
Provider credentialing and network participation are often treated as administrative responsibilities, but their financial implications can extend far beyond the credentialing department. A physician may have an established relationship with a Medicare Advantage payor, yet a newly hired practitioner or additional practice location may not be properly reflected in the payor’s participating provider records.
Similarly, changes in network composition, plan offerings, or contractual arrangements may affect whether services are reimbursed under participating-provider rates. A provider’s participation with one Medicare Advantage product does not necessarily establish participation with every product offered by the same insurance company.
These distinctions become especially important when patients transition between Medicare Advantage plans during Open Enrollment, which runs from October 15 through December 7, 2026, for coverage beginning January 1, 2027.
Healthcare organizations should therefore consider conducting a comprehensive review of their Medicare Advantage relationships before the new coverage year begins. This includes confirming participation status with each applicable payor, verifying that individual practitioners and practice locations are accurately reflected in provider rosters, and ensuring that credentialing and recredentialing requirements remain current.
Provider directory accuracy also deserves particular attention. Incorrect addresses, specialty classifications, network designations, or other identifying information may create confusion for patients selecting coverage and contribute to administrative disputes when claims are submitted.
Importantly, providers should not assume that an inaccurate directory listing necessarily establishes or eliminates contractual network participation. The underlying participation agreement, credentialing approvals, effective dates, and communications with the payor may ultimately determine the provider’s rights.
When discrepancies arise, healthcare organizations should document their efforts to obtain clarification or correction. Maintaining credentialing approvals, participation agreements, correspondence, roster confirmations, and relevant claim determinations can become particularly important if a disagreement later develops concerning network status or reimbursement.
Although many credentialing discrepancies can be resolved administratively, others may implicate substantive contractual issues. For example, a payor may deny claims based upon an alleged lack of participation despite a provider’s understanding that credentialing and contractual requirements were satisfied. In other circumstances, disagreements may arise concerning participation effective dates, reimbursement methodologies, or the propriety of network termination.
Such disputes require distinguishing between incomplete administrative enrollment and potential failures to comply with contractual obligations. The appropriate remedy depends upon the applicable agreement, governing law, and specific circumstances.
As Medicare Advantage plans and provider networks continue evolving, proactive credentialing oversight should be viewed as an important component of revenue protection and patient access. Confirming network relationships before January 1 can help providers reduce avoidable disruptions while preserving documentation necessary to address reimbursement disagreements.
Abril Law assists healthcare providers with managed care contract interpretation, network participation disputes, credentialing-related reimbursement issues, and challenges involving improper claim denials. Where administrative efforts prove unsuccessful, our attorneys evaluate available contractual and legal remedies to help providers protect their participation rights and pursue reimbursement for services rendered.
Trevor Biglin, Associate, Abril Law, can be reached at tbiglin@abrilaw.com.
