Dr. Barry F. Zeffren graduated from the Saint Louis University School of Medicine in 1979. He works in Glen Carbon, IL and 3 other locations and specializes in Allergy & Immunology and Allergy. Dr. Zeffren is affiliated with St Elizabeths Hospital, Alton Memorial Hospital, Gateway Regional Medical Center, Saint Josephs Hospital, Saint Francis Hospital and Anderson Hospital. He speaks English and Spanish.
Years in Practice: 36 Years
Languages Spoken: English, Spanish
Medical School: Saint Louis University School of Medicine
Graduation Date: 1979
Specialties: Allergy & Immunology, Allergy
*This physician has multiple office locations. See Appointments for details.