Professor Ha completed his M.D. in 1999 and Ph.D. in 2009 at Korea university. He certified board of Neurosurgery in 2004 and board of endovascular surgery in 2013 in republic of Korea. He was a visiting scholar at the department of neurosurgery, Kyoto university, Japan in 2010 and clinical observor at the department of neurosurgery, UC Irvine, USA in 2015.