Not that many U.S. graduate programs in art history offer terminal MA's. If you want to work with a professor specializing in modern/contemporary East Asian art, the list becomes even fewer. Those that come to mind are:
Jason Kuo & Alicia Volk at University of Maryland
Shaoqian Zhang at Oklahoma State University
& Wu Hung at University of Chicago, who you could potentially work with through the Master of Arts Program in the Humanities