Dr. Ariel Lopez Chavez is a medical oncologist, in Mill Valley. He graduate at Other, as medical school, then did his fellowship in oncology, at National Cancer Institute. The residency was followed at University of Pittsburgh Medical Center; in internal medicine Dr. Lopez accept several types of insurances: Aetna Choice POS II, Aetna HMO, BCBS Blue Card PPO, CIGNA PPO and many more. He is certified by American Board of Internal Medicine, in medical oncology and internal medicine. Dr. Chavez speaks English and Spanish, too.