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Douglas J. Harrison, MD, MS 

Division Chief, Lisa Dean Moseley Foundation Institute for Cancer and Blood Disorders

Douglas J. Harrison, MD, MS is a board-certified pediatric hematology/oncology specialist who is highly experienced and fellowship-trained with expertise in bone and soft tissue sarcomas and a particular focus on childhood and adolescent rhabdomyosarcoma.

Anderson Collier, MD — Northeast Florida

Division Chief, Hematology/Oncology

Dr. Collier is a pediatric hematologist/oncologist who obtained undergraduate and medical degrees from Vanderbilt University in Nashville, TN.  He then completed his Pediatric residency and Pediatric Hematology-Oncology fellowship at University of Texas Southwestern in Dallas, TX where he did research on the RASSFIA pathway in Wilm tumors.  Following fellowship, he returned to Vanderbilt Children's Hospital as an assistant professor where he helped to organize the multidisciplinary sarcoma program. 

David Dickens, MD — Central Florida

Division Chief, Hematology/Oncology

David Dickens, MD, FAAP, serves as Division Chief of Hematology/Oncology at ¾Ã¾Ã¾Ã¾Ã¾Ã¾Ã¾Ã¾«Æ· Children’s Hospital, Florida. Prior to ¾Ã¾Ã¾Ã¾Ã¾Ã¾Ã¾Ã¾«Æ·, Dr. Dickens served as the University of Iowa Dance Marathon Endowed Chair in Pediatric Oncology, Clinical and Translational Research. He also served as the Clinical Director of Pediatric Oncology at Stead Family Children's Hospital in Iowa City, Iowa, where he held significant academic and clinical leadership roles. He earned his medical degree at Upstate Medical University in Syracuse, New York and continued his training with a residency in pediatrics at the University of Pittsburgh School of Medicine in Pittsburgh, Pennsylvania. Dr. Dickens then completed a fellowship in pediatric hematology/oncology and stem cell transplantation at the University of Cincinnati College of Medicine and Cincinnati Children’s Hospital Medical Center in Cincinnati, Ohio.