• Mustafa Raoof, Gretchen Jacobson, and Yuman Fong.
• Department of Surgery, City of Hope National Medical Center, Duarte, CA.
• Ann. Surg. 2021 Oct 1; 274 (4): e315e319e315-e319.

ObjectiveTo determine how Medicare Advantage (MA) health plan networks impact access to high-volume hospitals for cancer surgery.BackgroundCancer surgery at high-volume hospitals is associated with better short- and long-term outcomes. In the United States, health insurance is a major detriment to seeking care at high-volume hospitals. A third of older (>65 years) Americans are enrolled in privatized MA health plans. The impact of MA plan networks on access to high-volume surgery hospitals is unknown.MethodsWe analyzed in-network hospitals for MA plans offered in Los Angeles county during open enrollment of 2015. For the purposes of this analysis, MA network data from provider directories were linked to hospital volume data from California Office of Statewide Health Planning and Development. Volume thresholds were based on published literature.ResultsA total of 34 MA plans enrolled 554,754 beneficiaries in Los Angeles county during 2014 open enrollment for coverage starting in 2015 (MA penetration ∼43%). The proportion of MA plans that included high-volume cancer surgery hospital varied by the type of cancer surgery. While most plans (>71%) included at least one high-volume hospital for colon, rectum, lung, and stomach; 59% to 82% of MA plans did not include any high-volume hospitals for liver, esophagus, or pancreatic surgery. A significant proportion of beneficiaries in MA plans did not have access to high-volume hospitals for esophagus (93%), stomach (44%), liver (39%), or pancreas (70%) surgery. In contrast, nearly all MA beneficiaries had access to at least one high-volume hospital for lung (93%), colon (100%), or rectal (100%) surgery. Overall, Centers for Medicare & Medicaid Services plan rating or plan popularity were not correlated with access to high-volume hospital (P > 0.05).ConclusionsThe study identifies lack of high-volume hospital coverage in MA health plans as a major detriment in regionalization of cancer surgery impacting at least a third of older Americans.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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