Optum Primary Care

Helen Mitropoulos, MD, is board certified in internal medicine. Dr. Mitropoulos earned her medical degree from the Autonomous University of Guadalajara, School of Medicine in Mexico. She completed her internship and residency at St. Mary Medical Center and Harbor-UCLA Medical Center. Patients especially like her friendly, caring, and compassionate manner. They also appreciate how hard working and dedicated she is. Dr. Mitropoulos is most proud of graduating at the top of her medical school class gram. In her spare time, she enjoys spending time with her family and walking on the beach. In addition to English, Dr. Mitropoulos is fluent in Spanish and Greek.

Tze-Yu Dang, MD, is board certified in internal medicine. Dr. Dang earned his medical degree from the Albert Einstein College of Medicine in Bronx, New York. He completed his internship and residency at the LAC-USC Medical Center in Los Angeles and a fellowship at the UC Irvine Medical Center. Dr. Dang pursued a career in the medical field out of an interest and fascination in the science of medicine. He believes patient education is key for preventative care. Dr. Dang enjoys running, tennis and traveling in his spare time. In addition to English, he speaks Mandarin.

Darshana Sarathchandra, MD, is a hospitalist - a physician who specializes in caring for patients in hospitals - at Huntington Memorial Hospital in Pasadena. He graduated from Ross University School of Medicine in Dominica, West Indies, and completed an internship and residency at Albany Medical Center in Albany, NY. Currently serving as editor of the Albany Medical Review online journal, Dr. Sarathchandra is a USC Trojans football fan who holds a black belt in Tae Kwon Do. He is passionate about his profession, and believes his patience, compassion, and good listening skills are what make him a good doctor.