Bay Area Schools - Help!

Im looking into starting a second career, I'm a military spouse and need to have a portable career to follow my husband into his next duty station. I am looking into LVN programs in the Bay Area and seem to only come up with a few schools. Does anyone have any suggestions? What are the pre-requisites?
Also, Do you need to be a CNA to start the LVN program? If so, any suggestions on where to take the CNA cert?

Im running into some dead ends online there is so much information...

Thank you!