Dr. Johnny Kuofeng Chang, MD is a highly experienced hematologist oncologist based in Tarzana, CA, with over 26 years in the medical field. He specializes in Oncology and Internal Medicine, treating a wide array of malignancies including leukemia, breast cancer, lung cancer, prostate cancer, and various other forms of cancer. Dr. Chang graduated from the David Geffen School of Medicine at UCLA in 1998 and completed his residency training at New York University....