Hi Gretchen,
I don’t (personally) know of any families or doctors in Taiwan, but did a search on the incidence of CAH in the Taiwanese once just out of curiosity (I am from Taiwan). Maybe you can try contacting some of the doctors listed in these studies. Not surprisingly, most of them appear to be associated with hospitals in Taipei.
P. S. I took my CAH son and (non-CAH) daughter to Taiwan a couple of springs ago. We had a great time....travelled all over, including in the mountain regions where the big earthquake was several years ago. My son is not a salt-waster, so I never (seriously) worried that we would need an endocrinologist while we were there. But, if we were ever there for an extended period of time, I would probably want some names, too (just in case.) Good luck!