<P> During season two , Addison punishes Alex Karev , by putting him on her service , because he almost got her arrested . However , by season three , she begins to feel an attraction towards Alex and eventually sleeps with him , only to discover that he is not interested in a relationship with her . Feeling alone , Addison decides to have a baby and visits Naomi , who is a fertility specialist . This introduces Addison 's transition from Grey 's Anatomy to its spin - off , as it serves as the backdoor pilot for Private Practice . Soon after , Addison decides to leave Seattle and move to Los Angeles , joining Oceanside Wellness , led by Sam and Naomi . This marks Addison 's departure from Grey 's Anatomy as a regular , although she makes later guest appearances . </P>
<P> During season two , Addison punishes Alex Karev , by putting him on her service , because he almost got her arrested . However , by season three , she begins to feel an attraction towards Alex and eventually sleeps with him , only to discover that he is not interested in a relationship with her . Feeling alone , Addison decides to have a baby and visits Naomi , who is a fertility specialist . This introduces Addison 's transition from Grey 's Anatomy to its spin - off , as it serves as the backdoor pilot for Private Practice . Soon after , Addison decides to leave Seattle and move to Los Angeles , joining Oceanside Wellness , led by Sam and Naomi . This marks Addison 's departure from Grey 's Anatomy as a regular , although she makes later guest appearances . </P>
what episode of grey 's does addison go to la
what episode of grey 's does addison go to la
During season two
During season two