Joseph Alvarnas, M.D., serves as the vice president for government affairs and chief clinical advisor, AccessHope. His clinical specialty is in bone marrow transplantation.

Hayder Alzubaidi, M.D., is an assistant clinical professor in the Department of Medicine at City of Hope in Los Angeles.

Idoroenyi Amanam, M.D., is an assistant professor in the Department of Hematology & Hematopoietic Cell Transplantation at City of Hope.

Arya Amini, M.D., is a radiation oncologist and associate professor in the Department of Radiation Oncology at City of Hope.

Clarke Anderson, M.D., is City of Hope's go-to professional for handling difficult and often heart-rending cases of cancer in small children, especially neuroblastomas, or tumors of the central nervous system.

Patricia Aoun, M.D., M.P.H., is the CLIA Laboratory director, chief of the Division of Clinical Pathology and a hematopathologist in the Department of Pathology at City of Hope.

Javier Arias-Stella, M.D., is a surgical pathologist and molecular pathologist in the Department of Pathology at City of Hope.

Ahmed Aribi, M.D., is a hematologist and Assistant Professor in the Division of Leukemia, Department of Hematology & Hematopoietic Cell Transplantation

Pediatric hematologist-oncologist Saro Armenian, D.O., M.P.H., is the Barron Hilton Chair in Pediatrics, with expertise in pediatric cancer, epidemiology and cancer survivorship.

Shukaib Arslan, M.D., is a hematologist and oncologist at City of Hope.