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The mission of the Harvey L. Neiman Health Policy Institute® is to establish foundational evidence for health policy and radiology practice that promotes the effective and efficient use of health care resources and improves patient care.

January 21, 2026

HPI 2025 Impact Report

The Impact Report is a snapshot of what the Institute has accomplished for ACR members and the patients they serve — advancing the specialty by meeting our members’ needs.

HPI Awards – 2025 was a year to celebrate!

2025 AuntMinnie Minnies Award for Most Influential Radiology Researcher went to Eric Christensen, PhD, Research Director at the Neiman HPI

AJR “Best of 2025” in the category of Policy, Quality, and Practice Management for the study Self-Interpretation of Imaging Studies by Ordering Providers: Frequency and Associated Provider and Practice Characteristics, with HPI lead author Eric W Christensen, PhD

JACR “Best of 2025” in the category of Health Services Research and Policy for the study Office-Based Diagnostic Imaging Interpreted by Nonphysician Practitioners: Characteristics, Recent Trends, and State Variation, with HPI lead author Eric W Christensen, PhD

JACR “Best of 2025” in the category of Training and Education for the study Evolving Trainee Participation in Radiologists’ Workload: A National Medicare-Focused Analysis from 2008 to 2020, with lead authors Judah Burns, MD, and HPI researcher YoonKyung Chung, PhD 

Policy Research Spotlight: Selected 2025 HPI Research that informs policy and fuels advocacy for ACR members

Workforce Shortage

Two Studies Shed Light on the Future Radiologist Workforce Shortage by Projecting Future Radiologist Supply and Demand for Imaging to 2055

Radiologists are Participating in Less Resident Training as Workloads Increase

Attrition from the Radiology Workforce is Higher for Subspecialists vs Generalists and Nonacademic vs Academic Radiologists

Concerning Decline in U.S. Pediatric Radiologists from 6.4% to 4.6% of all radiologists

Cancer Screening

CT Colonography Most Cost-Effective Colorectal Cancer Screening Strategy for Black Adults

Missouri Law Expanding Mammography Coverage Linked to 10% Increase in Screening and Higher 3D DBT Use

Shared Decision-Making Significantly Boosts Lung Cancer Screening Adherence Over Time

Scope of Practice Laws

Non-radiologist Ordering Providers Interpret ~44% of Office-based Imaging

Repeat Imaging Rates are Higher for Studies Interpreted by Non-Physician Practitioners Compared with Radiologists

Environmental Impact

Excess Imaging Use Associated with Significant Greenhouse Gas Emissions – The Same as Produced by Powering a Small City

Millions of Liters of Medical Imaging Contrast Media Contribute to Environmental Pollution

Making a Mark on Population Health: New Study and online Neiman Institute Cancer Disparity Maps identify and rank community factors that predict cancer disparities for data-driven, locally tailored interventions to improve cancer outcomes.

HPI Research in Action!

HPI Research Prompted ACR to Urge Federal Action on Lung Cancer Screening, with the College formally calling on the HHS Secretary to launch a national public health campaign promoting annual lung cancer screening and shared decision making after an HPI study showed significantly improved long-term screening adherence.

HPI Study Directly Informed New AMA Policy on Shared Decision Making for Lung Cancer Screening, providing the evidence base for adoption of AMA Resolution 932, which calls for expanded physician education and training to support effective shared decision making and documentation for LDCT screening in high-risk populations.

The HPI Achieved its Best-Ever Earned-Media in 2025

31 peer‑reviewed articles published providing key evidence on issues facing ACR members.

National News Coverage: HPI studies have appeared in 470 news reports – including Forbes, US News & World Report, USA Today, The New York Times, HealthDay, Becker’s Hospital Review, and all radiology trade publications— total audience over 1.6 billion, valued at $5.17 million in advertising.