If you feel your language needs are not being met, you can file a complaint with CalOptima. For help with interpreter services, please call CalOptima’s Customer Service Department at 1-714-246-8500 or toll-free at 1-888-587-8088, Monday through Friday from 8 a.m. to 5:30 p.m. We have staff who speak your language. TDD/TTY users can call 1-714-246-8523.