Debra P. Ritzwoller, PhD

Senior Investigator

Debra P. Ritzwoller, PhD, is an Economist and Senior Investigator at the Institute for Health Research. Her research focuses on variation in cancer screening and treatment, outcomes and costs in community settings, the impact of insurance benefit design on patient cost-sharing, and cost estimation within implementation science initiatives.

Dr. Ritzwoller completed her doctoral training in economics at the University of Colorado, Boulder. As an economist and health services researcher, she has served as a Principal Investigator or Co-investigator on more than a dozen large, complex, multi-site studies. Currently, Dr. Ritzwoller is the co-lead of the Lung PROSPR Research Center (Lung-PRC) to improve lung cancer screening. The long-term goal of this multi-site center grant is to identify critical gaps in the lung cancer screening process and to design innovative, multilevel interventions to reduce lung cancer mortality, particularly among underserved populations. She is also involved several studies related to the transition to telehealth venues of care within and across Kaiser Permanente, and how this shift has impacted health care utilization and costs. Additionally, she has collaborated with implementation scientists and with research teams studying implementation initiatives in a variety of topical areas, including lung cancer screening, asthma care management, immunization practices, and behavior health. Dr. Ritzwoller is an Adjunct Professor in the Department of Health Systems, Management, and Policy at the University of Colorado School of Public Health.

Selected Research:

  • The Lung PROSPR Research Center (Lung-PRC)
    • Funder: National Cancer Institute
    • Award End Date: 3/31/2023

  • Practical Implementation Science Approaches to Assess and Enhance Value of Cancer Prevention and Control in Rural Primary Care
    • Funder: National Cancer Institute
    • Award End Date: 8/31/2024

  • Disparities in Recurrence for Breast, Lung, and Colorectal Cancer Patients
    • Funder: American Cancer Society
    • Award End Date: 6/30/2021

  • Pragmatic Trial of More versus Less Intensive Strategies for Active Surveillance of Patients with Small Pulmonary Nodules
    • Funder: Patient-Centered Outcomes Research Institute
    • Award End Date: 7/31/2021

  • Effects of Virtual Visit Utilization vs In-Person Visit Utilization on Treatment Adherence: A Multi-Site Retrospective Cohort Study
    • Funder: KP-Telehealth Research Program
    • Award End Date: 12/31/2020