Jessica Nitardy, a Mexican dentist, says the majority of her clients are Americans who can't afford treatment in the U.S.
St. Paul has welcomed the ride services, while Minneapolis hasn't.
More than 350,000 uninsured poor in the Dallas/Ft. Worth metro area alone are missing out on health coverage.
Questions over just who can be held liable in the "sharing economy" are coming to a head.
MetroMile, an insurance company aimed at urban drivers with a low-car lifestyle, launched in Portland this month.