Dr. Ryan Chang, MD, is a dedicated and experienced internist based in San Mateo, California, with a practice history of 6 to 10 years. He earned his medical degree from the University of California (San Francisco) School of Medicine in 2019. Dr. Chang specializes in Internal Medicine and has extensive experience in managing a wide range of medical conditions including chronic diseases such as hypertension, diabetes, and obesity, as well as acute illnesses....