J.C.
Welcome!
I can't specifically help you with what you are asking because I'm in what they call the North County which is about 45 minutes north of downtown. What I can tell you is that California people are a different breed of people!! I am originally from the LA area and I moved down here last November and I was shocked to find that even though it's only an hour and a half from where I came from... it seemed like I had moved to another state! The people and the surroundings are very different.
As far as your pediatrician...stay away from Kaiser. You're just a number with them.
Again... welcome to the sunny state! :)