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School of Medicine
Assistant Professor, Pediatrics/Hematology
Dr. Keefer was born and raised in Frederick, Maryland and completed his undergraduate studies at the University of Virginia. He attended Vanderbilt University School of Medicine as part of the Medical Scientist Training Program earning his MD and PhD degrees. His graduate work, in the Department of Pharmacology, focused on signaling and trafficking of adrenergic receptors. Dr. Keefer then came to Johns Hopkins for his pediatric residency and has been here since. He served as chief resident in Pediatrics, completed fellowship in pediatric hematology/oncology and is currently an assistant professor in the Division of Pediatric Hematology.
Dr. Keefer's clinical interest are in sickle cell disease and bleeding disorders. His research is centered on novel therapeutics for sickle cell disease, where he is active in both basic science and clinical trials. Dr. Keefer also has a longstanding commitment to teaching and mentoring. He is the co-director of the pediatric hematology/oncology fellowship training program, serves as a pediatric resident advisor, and has received teaching awards from both the pediatric house staff and the pediatric hematology/oncology fellows.
Dr. Keefer live in Rodgers Forge with his wife Maureen, daughter Anna, and dog Murphy.