@jasperina Getting a TBS can be a problem. I experienced the same as you that the places listed may not know what you are talking about. As @ostearn suggested it may be that the front desk people don't know but they actually do offer TBS. It may also me that the center purchased the software but doesn't use it. I dunno, but it's odd.

Anyway I get DXA's and TBS at my doctors office here in the Los Angeles area. That is one of the main reasons I chose this doctor. I would certainly think there should be some in the SF bay area that offer it?