Nonmelanoma skin cancer (NMSC) is the most common malignancy in the United States, with substantial associated morbidity and cost, as well as relatively smaller but significant mortality. The most recent, peer-reviewed, published, national incidence estimate is from 1994. This study estimated 900 000 to 1 200 000 NMSCs in that year, approximately equaling all other cases of human malignancies combined.^1,2 However, the exact incidence of NMSC is unknown because the condition is not typically reported to cancer registries.