Imperial Health Plan of California, Inc. PO Box 60874 Pasadena, CA 91116
The Member Services Department can be reached at 1-800-838-8271, TTY: 711. We are open October 1 – March 31: Monday – Sunday from 8:00 am PST. – 8:00 pm PST. and April 1 – September 30: Monday – Friday from 8:00 am PST. – 8:00 pm PST., except holidays.