A resident of Montgomery County for over twenty years, he attended the International Baccalaureate Program at Richard Montgomery High School in Rockville, MD. After graduating from the University of Maryland at College Park with a Bachelor of Science Degree and High Honors in Physiology and Neurobiology, he went on to attend the Baltimore College of Dental Surgery at the University of Maryland at Baltimore, where he earned his Doctorate of Dental Surgery Degree. Dr. Horng completed a two year general dentistry residency program at the University of North Carolina at Chapel Hill, followed by a two year pediatric dental residency program at the Baltimore College of Dental Surgery at the University of Maryland at Baltimore.