Three, actually, but they’re far apart.
Kokkari in San Francisco
Evvia in Palo Alto, maybe an hour south, owned by the same people as Kokkari
Pathos in Berkeley, started by some Kokkari folks. This one doesn’t have many entrees beyond the ones you’re probably tired of.
Because they all have the same roots, it might not make sense to hit all three. Of course, you’re right about the Bay Area generally providing an “eating extravaganza”, just not among Greek places.