I would call a psychdoc on your insurance list (or perhaps not, depending,) and tell him that you were diagnosed, that your previous docotr in no longer in practice, and that you need to see someone about getting back on medication. Most Pdocs really hate the thought of one of us "running wild". Not because of horrible stereotypes, but because of the amount of human suffering this disease can bring to you and your children if for some reason it really gets out of control.
I work in the mental health field and can tell you that if they got rid of all us bipolars in the mental health system, there would be no system. There rwere a lot of docotrs in my hometown who were medicated bipolars as well. They were often among the few who really gave a whip about their patients. At the same time, I realize how easily that label could be used against me, especially here in Sweden, so I am carefull about who I tell. It's not exactly a secret, but I reserve the right to share it with whomever I chose.
Welcome to the forum, by the way! It's always great to hear other's stories as well!