Dr. Alison R. Walker

Michael Nieder is a Hematologist Oncology specialist and a Hematologist in Tampa, Florida. Dr. Nieder is rated as a Distinguished provider by MediFind in the treatment of Congenital Aplastic Anemia. His top areas of expertise are Graft Versus Host Disease (GvHD), Acute Myeloid Leukemia (AML), Chronic Graft Versus Host Disease (cGvHD), Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Nieder is currently accepting new patients.

Dr. Vlachos is the chief of hematology in the Johns Hopkins All Children’s Hospital Cancer & Blood Disorders Institute in St. Petersburg, Florida, and professor of pediatrics (PAR) in the Johns Hopkins University School of Medicine. She joined the hospital staff in 2024. She was previously professor of pediatrics at Zucker School of Medicine at Hofstra/Northwell and attending physician in hematology/oncology at Cohen Children’s Medical Center/Northwell Health, where she was head of the Bone Marrow Failure Program and head of the pediatric hematology/oncology trials office. Dr. Vlachos is internationally known for clinical care and expertise in bone marrow failure syndromes and her transformational research in Diamond Blackfan anemia (DBA) syndrome, a rare inherited bone marrow failure syndrome. Dr. Vlachos is the founder and has directed the Diamond Blackfan Anemia Registry (DBAR) of North America since its inception in 1991. She is the principal investigator and co-investigator on multiple grants funded by the National Institute of Health and the Centers for Disease Control and Prevention. She has published numerous articles on her research findings and has been invited to author papers and book chapters on bone marrow failure syndromes and DBA. Dr. Vlachos is a member of the Medical and Scientific Advisory Board for the Shwachman-Diamond Syndrome Registry, is a member of the Scientific Advisory Board for the Diamond Blackfan Anemia Foundation and holds a position on the Scientific Program Committee for Bone Marrow Failure of the American Society of Hematology. She earned her medical degree from New York Medical College in Valhalla, New York. She completed her residency in pediatrics at North Shore University Hospital in Manhasset, New York. She then completed a clinical fellowship in bone marrow transplantation at North Shore University Hospital, followed by a fellowship in pediatric hematology-oncology and bone marrow transplantation at Mount Sinai Medical Center in New York. Videos Bone Marrow Failure Syndrome Expert Dr. Adrianna Vlachos at Johns Hopkins All Children’s. Dr. Vlachos is rated as an Elite provider by MediFind in the treatment of Congenital Aplastic Anemia. Her top areas of expertise are Aase Syndrome, Pure Red Cell Aplasia, Aplastic Anemia, and Transient Erythroblastopenia of Childhood.

Farhad Khimani is a Hematologist Oncology specialist and a Hematologist in Tampa, Florida. Dr. Khimani is rated as a Distinguished provider by MediFind in the treatment of Congenital Aplastic Anemia. His top areas of expertise are Graft Versus Host Disease (GvHD), Chronic Graft Versus Host Disease (cGvHD), Diffuse Large B-Cell Lymphoma (DLBCL), Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Khimani is currently accepting new patients.