Dr. Jongsung Kim served as the Chief of Endodontics in the United States Air Force and practices endodontics in Guam, providing specialty care throughout Micronesia. He first served as a missionary to Mongolia in 1997, where his passion for medical missions and gospel ministry began. He is an associate pastor at the Guam Korean Seventh-day Adventist Church and also serves as pastor of the Ulaanbaatar International Church in Mongolia. Dr. Kim has conducted numerous dental mission trips and pioneered endodontic lectures at the Mongolian National University of

Medical Sciences School of Dentistry, helping lay the foundation for the country's first endodontic residency training program. Passionate about Christ's healing ministry, he is committed to equipping healthcare professionals to integrate clinical excellence, compassionate service, and the gospel to restore health, bring hope, and make disciples.