Well, your location is los angeles, and i live in los angeles county myself. I have been looking to go to paramedic school as well. Alot of schools in california period require that you have emt experience, that experience can either be IFT's or 911.
I spoke with and e-mailed a particular paramedic school regarding pre-requisites. I am an IFT emt, and they said i do meet the minimum qualificaitons for entrance, however for successful performance in field internship, from what i was told, having previous 911 experience as an emt does play a role. So it's usually a suggestion to have 911 experience, but not required.
Then again, alot of it boils down to how confident you feel about everything. I posted a similar question and got lots of good feedback, hope this helps you. I have a spread sheet file that contains a listing of all paramedic schools in california. if you give me your e-mail, i can send it to you. It also lists the pre-requistites for entrance.