Association and Trends in Medicare Denials and Utilization for Brain CT: Indirect Impacts by Targeted Policy Intervention?


Twenty-five years of annual Medicare Physician/Supplier Procedure Summary (PSPS) Master File data were used to assess trends in normalized volume and claim denial rates for brain computerized tomography. Alongside growth in utilization of brain computerized tomography (services, denial rates, fell from 1999-2005 and with relatively leveled growth and less denial rate volatility thereafter. More recent trends in denial rates may be related to policy interventions initially aimed at cost and volume reduction.






Published Version (Please cite this version)


Publication Info

French, Robert J, Joshua Hirsch, Jennifer Hemingway, Danny R Hughes, Reginald Lerebours, Sheng Luo, Brian C Allen, Richard Duszak, et al. (2022). Association and Trends in Medicare Denials and Utilization for Brain CT: Indirect Impacts by Targeted Policy Intervention?. Current problems in diagnostic radiology. p. S0363-0188(22)00111-6. 10.1067/j.cpradiol.2022.07.009 Retrieved from

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Robert James French

Assistant Professor of Radiology

Musculoskeletal Radiologist with research interests in:
MSK imaging
MSK intervention
Radiology Education
Health Care Cost, Policy, Value


Reginald (Gino) Lerebours

Biostatistician II

Education: Masters Degree, Biostatistics. Harvard University. 2017
Bachelors Degree, Statistics. North Carolina State University. 2015

Overview:  Gino currently collaborates with researchers, residents, and clinicians in the Departments of Surgery, Radiology and Infectious Diseases. His main research interests and experience are in statistical programming, data management, statistical modeling, statistical consulting and statistical education.


Sheng Luo

Professor of Biostatistics & Bioinformatics

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