Research Letter

Overturned Health Insurance Claim Denials

JAMA Internal Medicine 10.1001/jamainternmed.2026.0358

April 13, 2026 at 11:00 AM EDT

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This case series examines the clinical and administrative characteristics of insurance claim appeals, denials, and decision reversals in New York State from 2019 to 2025.

Corresponding Author: Joseph Dov Bruch, PhD, Department of Public Health Sciences, The University of Chicago, 5841 S Maryland Ave, Room W-250C, Chicago, IL 60637 (jbruch@bsd.uchicago.edu).

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