Dr. Johnny Cai, MD is a dedicated internist based in Sylmar, CA, affiliated with Olive View-UCLA Medical Center. With a specialty in Internal Medicine, Dr. Cai is proficient in English and focuses on treating a wide range of conditions, including all types of headaches, constipation, foot infections, herpes zoster without complications, joint pain, leukocytopenia, nausea, tobacco use disorder, and venous embolism and thrombosis....