Dr. Jeong is board certified in allergy and immunology. He completed his allergy and immunology training at the University of Washington and Seattle Children's Hospital in Seattle, WA. He cared for both adults and children during his training, treating a wide spectrum of allergic diseases and clinical immunodeficiencies. He also conducted basic research focusing on the role of T-cells in food and environmental allergies. His research resulted in multiple presentations at national and international meetings.

He is board certified in pediatrics. He completed his internship and residency in pediatrics at the University of Michigan C.S. Mott Children's Hospital in 2008. He completed medical school at the University of Iowa in 2005 and his undergraduate degree at Northwestern University.

Dr. Jeong is a member of the American Academy of Allergy, Asthma, and Immunology, the American College of Allergy, Asthma, and Immunology, the European Academy of Allergy and Clinical Immunology, and the American Academy of Pediatrics. His clinical interests include food allergy, atopic dermatitis, asthma, rhinitis, urticaria, and immunodeficiencies.