Unsurprisingly, patients with cancer have a number of symptoms and complications related to their cancer and treatments that often require health care services. Although many of these issues can be and are managed in the outpatient setting, patients with cancer sometimes seek care in the emergency department (ED), often at the direction of their care team, and many are subsequently hospitalized. Tabriz and colleagues 1 estimated the number of ED visits by patients with cancer that are potentially preventable, using a Centers for Medicare & Medicaid Services (CMS) quality measure definition. 1,2 Using the 2012 to 2019 National Hospital Ambulatory Medical Care Survey, they estimated that ED visits by patients with cancer increased from 3 734 101 in 2012 to 6 240 650 in 2019 (5.4% of all ED visits that year) and that more than one-half of these visits were potentially