In Navajo Nation, the Tuba City Regional Health Care Corporation serves members of the Navajo, Hopi, and San Juan Southern Paiute tribes and runs a booming business: nearly 700,000 patient visits in 2015 via a 72-bed hospital, mobile health units, and satellite clinics. In an “Entry Point,” article in Health Affairs, Jessica Bylander, a 2017 Association of Health Care Journalists Reporting Fellow on Health Care Performance, explores the health system’s challenges and its success, which has been aided by Arizona’s decision to expand Medicaid.