Dr. Ren is a licensed Allergy Immunology in MO. Graduated in 2012. Medical degree obtained from Hubei, Tongji Medical University in China. Completed residency training at Jacobi Medical Center and fellowship training at Washington University. Currently practices at Washington University Medicine (Washington University Medicine), located at 5201 Midamerica Plz, Saint Louis, MO 63129. Dr. Ren specializes in Chronic urticaria, drug allergy, hereditary angioedema.. In addition to English, Dr. Ren speaks Mandarin and accepts new patients.