Dr. Ryu received his Bachelor of Engineering in Chemical Engineering from Cooper Union for the Advancement of Science and Art, in New York City graduating in May of 1992. He worked in the engineering field, but he was not happy. In1994, he entered New York University College of Dentistry where he received his degree of Doctor of Dental Surgery in May of 1998. Dr. Ryu also completed an Advance Education in General Dentistry in June of 1999 from Columbia University School of Dentistry and Presbyterian Hospital in New York City.
Dr. Ryu has been in both public and private practices. He was chosen as a recipient for the State of New Jerseys Health Care Provider Loan Redemption Program for providing access to care for the underserved. From 1999 till 2002, he practiced in a private practice and a community health center in New Jersey.