Dr. John J. Hernandez specializes in otolaryngology in Westlake Village area. Dr. John J. Hernandez has a medical practice at 1250 La Venta Drive, Westlake Village CA, and has over 44 years of experience in the field of medicine. He graduated from University Of California, Ucla School Of Medicine with his medical degree in 1973. He is affiliated with numerous hospitals, including Los Robles Hospital & Medical Center (CA) and more. Dr. Hernandez is accepting new patients at his medical office and practice location in Westlake Village, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.