How do i contact iehp member services? TTY users should call 1-800-718-4347. You can also email [email protected]. If you have questions, call IEHP DualChoice Member Services at 1-877-273-IEHP (4347), 8am-5pm (PST), 7 days a week, including holidays.How do i contact ihep customer service? You can also email [email protected]. If you need healthcare coverage, call 1-866-294-4347, 8am-5pm Monday-Friday. TTY users should call 1-800-720-4347.Who do i call if i need health insurance in california? If you need healthcare coverage, call 1-866-294-4347, 8am-5pm Monday-Friday. TTY users should call 1-800-720-4347. You’ll speak to one of our friendly bilingual Enrollment Advisors. For general inquiries please call (909) 890-2000, 8am-5pm, Monday-Friday. TTY users should call (909) 890-0731.