Ariel Lopez-Chavez, MD Ariel Lopez-Chavez, MD is a medical oncologist with AHN Cancer Institute and the Director of Precision Medicine and Developmental Therapeutics Cancer Clinic. He specializes in the development of customized plans of care for patients with cancer. Dr. Lopez-Chavez went to medical school at Universidad Autónoma de Querétaro in Querétaro, México. He did his residency at University of Pittsburgh Medical Center in Pittsburgh, Pennsylvania and completed his fellowship in medical oncology at National Cancer Institute in Bethesda, Maryland. He is certified by the American Board of Internal Medicine in Medical Oncology. Dr. Lopez-Chavez has been key in the development of novel cancer treatment interventions and applies new technologies to improve outcomes and enhance patient experience. He sees patients ages 18 and older.