Original Investigation

Palliative Care for Advanced Cancer in Medicare Advantage and Physician Networks

JAMA Network Open 10.1001/jamanetworkopen.2026.36865

September 30, 2026 at 11:00 AM EDT

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In this retrospective cohort study of Medicare beneficiaries with advanced cancer, MA enrollment was associated with increased PC utilization, primarily attributable to differential oncologist network composition. Persistent differences in systemic therapy use and hospice enrollment after matching by treating oncologists suggest that MA plan–level features beyond physician networks and patient characteristics may be associated with these outcomes.

Corresponding Author: Xin Hu, PhD, Department of Radiation Oncology, School of Medicine, Emory University, 1365 Clifton Rd NE, C3005, Atlanta, GA 30322 (xin.hu@emory.edu).

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