Children up to age 1 with family income up to 212 percent of fpl; any child age 1-5 with a family income up to 212 percent of fpl; michild: 1-888-988-6300. speech / hearing impaired tty 1-888-263-5897. call center hours monday — friday 8:00 am — 7:00 pm (et) michigan medicaid expansion update..