MedPAC Examines Directory Inaccuracies in Medicare Advantage Plans

MedPAC's Analysis of Medicare Advantage Physician Networks

In recent discussions by the Medicare Payment Advisory Commission (MedPAC), a pressing issue emerged regarding the accuracy of physician directories in Medicare Advantage (MA) plans. A federal analysis using 2023 data revealed that almost one in five visits to a primary care physician in these plans involved doctors who weren’t listed in the patient's own network directory. The MedPAC meeting aimed to clarify the implications of this mismatch on both patients and physicians.

Divergent Views on Inaccuracies

Members of MedPAC displayed differing opinions on the directory inaccuracies. Some commissioners argued that such discrepancies indicate a significant error rate that must be addressed by health plans. On the other hand, several members cautioned against viewing these inaccuracies as outright barriers to care. During this month’s presentation, which was led by MedPAC Chair Amol S. Navathe, M.D., Ph.D., staff emphasized the need for accurate directories, noting that MA plans are required to maintain these listings to manage care effectively and ensure that beneficiaries have choices among providers.

Katelyn R. Smalley, Ph.D., M.Sc., senior analyst, and Krista Cherry, senior research assistant, highlighted the complexities of provider directories. While 93% of primary care physicians and 88% of specialists were found in at least one MA plan’s directory, the encounter data—records submitted by plans for services rendered—indicated even higher participation rates of 97% for primary care and 98% for specialists. A closer examination revealed that 9.4% of these physicians had treated MA enrollees without being listed in any directory.

The Role of Encounter Data

The analysis focused on HMO and PPO plans exclusively, underscoring the importance of encounter data in assessing network participation rates. Notably, findings indicated that as of February 2023, 32% of encounters involved physicians not included in the enrollees’ directories, with 18% being primary care visits and starkly higher mismatches for specialists, particularly in fields like psychiatry and emergency medicine.

Commissioners debated whether these inaccuracies stem from outdated information or reflect patients seeking out-of-network care. Evidence suggests that a significant portion of MA claims—estimated between 15% and 22%—may involve out-of-network providers. This reliance on up-to-date information creates additional challenges, as physicians must relay directory corrections to each plan, often without sufficient motivation to do so.

Implications for Patients and Physicians

The MedPAC discussions highlighted a crucial aspect of patient choice and physician-patient coordination, particularly in primary care settings. Commissioner Joshua Liao, M.D., M.Sc., emphasized that the choices patients make regarding their primary care physicians greatly impact their overall care trajectory. Despite the reported inaccuracies, many acknowledged this specific mismatch was important yet challenging to attribute to a single cause.

Responses from commissioners varied. Some advocated for continued scrutiny of how directory inaccuracies could hinder access to care and sought increased accountability from MA plans. Others pointed out the necessity of maintaining a balance between overseeing access to care and recognizing the value that managed care brings to health systems.

The Need for Improved Data Practices

While auditing the state of physician directories, commissioners acknowledged that maintaining accurate listings is a complicated endeavor, especially for hospital-based physicians, who may have high turnover or work in temporary positions. Furthermore, advancements in technology and artificial intelligence were discussed as potential solutions for improving the timeliness and accuracy of provider listings.

Some members, including Commissioner Thomas Diller, M.D., M.M.M., urged for comprehensive changes that keep up with the dynamics of healthcare delivery. They suggested using centralized systems for directory data and leveraging technology to enhance tracking of network changes, thereby preventing unexpected out-of-network encounters that lead to significant patient costs and surprise billing experiences.

Future Directions and Considerations

As discussions continue around the implications of these findings, there remains a continual push for MedPAC to gain better insights into the consistency and accuracy of network status across plans. The mission is not only to guide improvements in directory management but also to ensure that patients can navigate their healthcare choices effectively without frustrating barriers.

The interplay between directory accuracy, patient choice, and physician coordination will be pivotal as Medicare continues evolving to address beneficiary needs. MedPAC acknowledges that while some discrepancies may be inherent due to healthcare complexities, ongoing dialogue and investigation will be crucial in ensuring quality care access for all Medicare beneficiaries.