Hey guys! Before I'm wisked away to work I figured it'd be a darn good idea to introduce myself. I'm Carlin and I bring you Aaron Wei, former ER nurse at Gotham General turned nurse practitioner. He runs a free clinic that is supported by the Wayne Foundation in the China Basin and lives in an apartment above the clinic with his four-year-old niece Meilin "May" Chang. There is an additional apartment for rent above his if any of your characters are looking for a place.
He's lived in Gotham his whole life (excluding the few years he lived in Washington for schooling) and is an uncharacteristically positive guy. His clinic is open to all, though I suspect there are likely to be turf wars considering he's right smack in the middle of Lucky Hand Triad territory. If you want a complete idea of what Aaron is like, you can read his bio here.
Now I must be off. Feel free to contact me via comment, on AIM at xscarletkittie or send an email to dark.fantasia@gmail.com.