Is there? Too lazy to drive to Oakland Chinatown. It doesn't have to be a fancy tea house with a big menu, just a reasonable selection of the basics, and takeout is fine. Jin Ling (sp?) in Elmwood just started serving dim sum, but a while ago I bought a steamed bao and it looked/tasted like one of those frozen jobs.
(Also it's weird, but some of the worst Chinese food I've eaten in my life was in Oakland Chinatown. I know there's many good restaurants there too....)