ERs are mandated to provide emergency care to anyone regardless of insurance status. They get sweet tax deductions to do so and they get reimbursed by medicare

ERs are mandated to provide emergency care to anyone regardless of insurance status. They get sweet tax deductions to do so and they get reimbursed by medicare as well. Also they have to take every insurance. There's a limit though, usually they will do enough to stabilize you out of immediate danger. So if you go to the ER with cancer and no insurance they may help you stabilize but they won't necessarily treat your cancer.