Provider billing data sourced from CMS Medicare Fee-for-Service Provider Utilization & Payment Data (2022). Medicare Advantage, Medicaid, and commercial claims are excluded. CMS suppresses provider-level counts for fewer than 11 annual services. National LDCT-eligible population estimated at 20–28 million adults meeting 2021 USPSTF criteria (ages 50–80, ≥20 pack-year history, currently smoking or quit within 15 years); figures shown reflect Medicare FFS only. Estimated total annual LDCT screens across all payers: ~3 million Americans receive their LDCT annually.