For additional information or to request this information in another language or format, please call Member Services
Toll Free: 1(877) 600-5472 or TDD/TTY: 1(877) 600-5473. Trillium Member Services is available to answer your call
directly 8 a.m. to 5 p.m., Monday through Friday (except on holidays).
Trillium Utilization Management (UM) staff is available to answer calls from 8 a.m. to 5 p.m., Monday through
Friday (except holidays). UM staff can be reached by calling Member Services.
Our automated system is available anytime for self-service options, including after hours, weekends, and holidays.
Voice messages are reviewed and responded to within one business day. Member Services also has free language
interpreter service available for non-English speakers.