Nuchal Translucency scan in L.A? - where??

foreignpregnantwoman

I need your help. Where can I, as a European non US citizen, have my nuchal translucency scan done in Los Angeles (or San Francisco and Vegas)? 

Unfortunately, I will not be able to have it done in my home country as we are going to California on vacation during my 11-14 weeks of pregnancy. So I need to find a place in CA that take in foreigners without referrals who pay in cash.

Any ideas??