What is the group number for my Kaiser medical coverage? The group number for Kaiser Northern CA is 39044. The group number for Kaiser Southern CA is 225775. By EBAdmin|2019-01-12T01:43:48+00:00April 14th, 2017|Medical|Comments Off on What is the group number for my Kaiser medical coverage? Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail About the Author: EBAdmin