What key details about andy eisen  can be extracted from the following bio?  Bio: andrew ` andy ' mark eisen , -lrb- born in 1969 in las vegas , nevada -rrb- , is an american politician and a democratic member of the nevada assembly since february 4 , 2013 representing district 21 .
- residence is las vegas , nevada- successor is incumbent- party is democratic- predecessor is mark sherwood- district is 21st- state assembly is nevada- term start is february 4 , 2013- birth date is 1969- name is andy eisen- nationality is american- birth place is las vegas , nevada- alma mater is northwestern university medical school