You may request an estimate by calling Patient Account Services at 480-301-7033, between 8 a.m. and 5 p.m. Mountain Standard Time, Monday through Friday. For calls outside the Phoenix metropolitan area, please call 800-603-0558 (toll-free). The estimate will provide you with an idea of your related costs. Although Patient Account Services tries to estimate the actual charges as closely as possible, the actual charges may vary from the estimate.