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
You might be interested in School of the Art Institute of Chicago's MA in Arts Administration & Policy & MA in Modern and Contemporary Art History. It's a three-year dual degree program that covers both grounds.