Dr. Ogonna I Onyeje specializes in internal medicine in Modesto area. Dr. Ogonna I Onyeje, MD has a medical practice at 4601 Dale Road, Modesto CA, and has over 18 years of experience in the field of medicine. He graduated from his medical school with his medical degree in 1999. He is affiliated with numerous hospitals, including Emanuel Medical Center (CA) and more. Dr. Onyeje is accepting new patients at his medical office and practice location in Modesto, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.