KFF Health News Mar 30 2026 Last summer, Lorena Alvarado Hill received a series of unexpected medical bills. A teacher's aide in Melbourne, Florida, Hill is a single mom who works shifts at J.Crew on the weekends to send her daughter to college. Hill and her mother, who lives with her, had been enrolled in an insurance plan through HealthFirst. Hill paid nothing toward the premiums for the government-subsidized plan, which previously had covered her scans and other appointments. Then the bills