OBJECTIVES: To determine whether enough primary care providers are in close proximity to where dual-eligible beneficiaries live to provide the capacity needed for integrated care models. STUDY DESIGN: Secondary data analysis using dual-eligible enrollment data and health care workforce data. METHODS: We determined the density of dual-eligible beneficiaries per 1000 population in 2017 for each of 3142 US counties. County-level supply of primary care physicians (PCPs), primary care nurse practitioners, and physician assistants was determined. RESULTS: One-third of the 791 counties with the highest density of dual-eligible beneficiaries had PCP shortages. Counties with the highest density of dual-eligible beneficiaries and the fewest primary care clinicians of any type were concentrated in Southeastern states. These areas also had some of the highest coronavirus disease 2019 outbreaks within their states. CONCLUSIONS: States in the Southeastern region of the United States with some of the most restrictive scope-of-practice laws have an inadequate supply of primary care providers to serve a high concentration of dual-eligible beneficiaries. The fragmented care of the dually eligible population leads to extremely high costs, prompting policy makers to consider integrated delivery models that emphasize primary care. However, primary care workforce shortages will be an enduring challenge without scope-of-practice reforms.
Dual-eligible beneficiaries and inadequate access to primary care