Dr. William E. Berger is an allergist-immunologist in Mission Viejo, California and is affiliated with multiple hospitals in the area, including Providence Mission Hospital-Mission Viejo and Laguna Beach and MemorialCare Saddleback Medical Center. He received his medical degree from University of Cincinnati College of Medicine and has been in practice for more than 20 years. Dr. William E. Berger accepts Humana, Blue Cross - see other insurance plans accepted.