Rev. Ko serves as Lead Pastor of 3Stone/New York Chinese Alliance Church in Manhattan, NYC. In addition to seminary training, his healthcare specialties include pediatrics, preventive medicine, and public health. He is passionate about global health missions and holistic ministry as exemplified by the life of Jesus in Matthew 9:35. He enjoys preaching, mentoring church leaders, discipling Christians of all stages of faith, and teaching seminary/graduate students while working as Adjunct Professor at Alliance Theological Seminary and Boston University School of Public Health. Having worked extensively in Africa and SE Asia while implementing national public health programs, he has a wealth of global health policy and missions experience.