kˈeɪoʊ ɪz ɐ nˈeɪɾɪv ʌv jˈænʃjuːi tˈaʊnʃɪp ɪn tˈeɪnən kˈaʊnti nˈaʊ pˈɑːɹt ʌv tˈeɪnən sˈɪɾi ænd ɡɹˈædjuːˌeɪɾᵻd fɹʌm nˈæʃənəl taɪwˈɑːn jˌuːnɪvˈɜːsᵻɾiz skˈuːl ʌv mˈɛdəsən ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti ˈeɪt.
Chao is a native of Yanshuei Township in Tainan County (now part of Tainan City) and graduated from National Taiwan University's School of Medicine in 1998.