• Subodh Potla, Tyler S Cole, Celene B Mulholland, and Luis M Tumialán.
• Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA.
• World Neurosurg. 2021 May 1; 149: e963-e968.

ObjectiveThe Patient Protection and Affordable Care Act (ACA) sought to expand access to health care for 46 million uninsured Americans. Increasing consumer coverage and ensuring affordability of care have raised concerns about ACA Marketplace plans with limited in-network physician coverage (narrow network plans). We assessed the neurosurgery coverage of ACA Marketplace plans in Arizona.MethodsThe Health Insurance Marketplace website was used to identify ACA Marketplace plans in Arizona. Plan-specific details were examined to search for in-network neurosurgeons (2016-2019). Physician- and patient-level information was obtained using Intellimed health care databases, which provide specific neurosurgery diagnosis-related group information.ResultsAlthough 5 insurance providers offered plans on the ACA Marketplace in Arizona, only 1 plan was available in 13 of 15 counties (87%). Evaluation of in-network coverage found that all in-network outpatient neurosurgery providers are in 5 of 15 counties (33%). Most of the other counties (9 of 10) have neurosurgery facilities, but do not have in-network access to neurosurgical care within the county (∼1.1 million people or 15% of the state population).ConclusionsBy narrowing the network of providers, insurance companies are attempting to maintain fiscal viability of their ACA Marketplace products. However, 10 of the 15 counties (67%) in Arizona do not have access to outpatient neurosurgical care through these plans despite the presence of neurosurgical facilities in most counties. Access to neurosurgical care requires consideration of network coverage in policies designed to expand coverage and coverage options for patients insured through the ACA Marketplace.Copyright © 2021 Elsevier Inc. All rights reserved.

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