Meet Our Team

Our expert team provides comprehensive clinical care and treatment for children, adolescents and young adults with cancer and blood disorders.

Our team of pediatric oncologists and hematologists come from diverse professional and academic backgrounds. We work closely with your family to ensure your child receives the best care.

Learn more about our physicians and feel confident about your choices of pediatric oncology and hematology experts.

Hematology/Oncology

Irmel A Ayala, M.D. 

Dr. Ayala is the director of the Hemophilia and Bleeding Disorders Treatment Center at Johns Hopkins All Children's Hospital. She also is the hematology leader of the Young Women Bleeding Disorders/Menorrhagia Clinic, which focuses on a multidisciplinary approach to bleeding symptoms in girls and young women. Dr. Ayala also is involved in the newly created Immune Dysregulation Clinic, which evaluates patients with autoimmune cytopenias in a multidisciplinary approach.

Dr. Ayala joined the hospital in 2000 and is certified by the American Board of Pediatrics and the sub board of pediatric hematology/oncology. She was the chair of the Division of Hematology/Oncology between 2013-2017 and also served as interim director for the division between 2015-2016. Dr. Ayala's research experience includes multicenter national and international projects.

Dr. Ayala received her medical degree from the University of Puerto Rico School of Medicine, her residency training at the San Juan City Hospital in Puerto Rico and her fellowship training at the Emory University School of Medicine Division of Pediatric Hematology/Oncology. Dr. Ayala is a member of the American Society of Pediatric Hematology/Oncology and the Hemophilia and Thrombosis Research Society.

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Marisol Betensky, M.D. 

Dr. Moore is a pediatric hematologist/oncologist in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. He joined the hospital staff in 2013.

Dr. Moore received his medical degree from the University of Florida and completed a pediatric residency at Orlando Health and a hematology/oncology/bone marrow transplant fellowship at the University of Colorado in Denver. Dr. Moore is an instructor of pediatrics for Johns Hopkins University School of Medicine and his clinical interests include a focus on acute lymphoblastic leukemia (ALL).  Additionally, he specializes in Medical Informatics and studies improving patient safety through enhancing the electronic medical record. 

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Neil Andrew Goldenberg, M.D. 

Dr. Goldenberg was named director of research at Johns Hopkins All Children's Hospital in July 2012 as well as chief research officer of the All Children's Research Institute and director of the new Clinical and Translational Research Organization at JHACH. He is an associate professor of pediatrics and medicine at the Johns Hopkins University School of Medicine.

Dr. Goldenberg is principal investigator for both the iPICS (Institution-wide Prospective Inception Cohort Study of Individuals with Childhood-Onset Acute and Chronic Health Conditions) and PREDICT (Prospective Research on Early Determinants of Illness and Children's Health Trajectories) studies at JHACH. Both studies unite physician-scientists in St. Petersburg and Baltimore in searching for biomarkers to improve the diagnosis and treatment of serious diseases and gain insights about the role of genetic, epigenetic and environmental factors that influence development of disease.

He is the principal investigator, steering committee chair or data and safety monitoring committee chair for several NIH- and industry-sponsored multicenter clinical trials, and has co-authored international clinical and clinical research guidelines.

Dr. Goldenberg is director of the pediatric thrombosis program at JHACH and is co-director of the pediatric stroke program. He also leads the Prospective Multicenter Evaluation of the Duration of Therapy for Thrombosis in Children (known as KIDS-DOTT), a study that involves more than two dozen medical institutions.

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Nanette H Grana, M.D.

Dr. Grana specializes in pediatric hematology/oncology in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. She joined the hospital medical staff in 1992.

Dr. Grana earned her medical degree from the University of Puerto Rico School of Medicine. She trained in pediatrics at University Children’s Hospital in San Juan, Puerto Rico, and completed a pediatric hematology/oncology fellowship at the University of Florida.

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Britni Nicole Hill,  M.D.

Dr. Hill specializes in caring for hospitalized children in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. She started on the hospital staff in 2014, joining the hematology/oncology team in 2017.

Dr. Hill earned her medical degree at the University of the Americas in the West Indies. She completed her internship and residency in pediatrics at the University of Florida College of Medicine in Jacksonville. She completed a hematology/oncology fellowship at the University of Mississippi.

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Jennifer L Mayer, M.D. 

Dr. Mayer specializes in pediatric hematology/oncology in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute and is the lead hematologist of the Vascular Anomalies Program at the hospital. She served 21 years as medical director of Johns Hopkins All Children’s collaboration with Sarasota Memorial Hospital. She is author of more than 30 publications and two textbook chapters. She joined Johns Hopkins All Children's in 1996.

Dr. Mayer received her medical degree from Dartmouth Medical School in New Hampshire. She completed her pediatric residency, pediatric hematology-oncology fellowship and clinical research fellowship at Yale University School of Medicine in Connecticut. Additionally, Dr. Mayer serves as the inpatient clerkship director for Florida State University medical students and is medical director for Johns Hopkins All Children’s Outreach Grand Rounds in Sarasota, Manatee and Charlotte counties. She is a fellow of the American Academy of Pediatrics, Children’s Oncology Group and the American Society of Pediatric Hematology-Oncology Vascular Anomalies Special Interest Group. 

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Jonathan Metts, M.D. 

Dr. Metts specializes in pediatric hematology/oncology in the Johns Hopkins All Children's Cancer & Blood Disorders Institute.  He joined the hospital in 2016.

He received his medical degree from the University of South Carolina School of Medicine and completed an internship and residency in pediatrics at Johns Hopkins All Children’s Hospital through the University of South Florida Morsani School of Medicine.

Dr. Metts then trained at Emory University School of Medicine as a pediatric hematology/oncology fellow.

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Colin Evan Moore, M.D. 

Dr. Moore is a pediatric hematologist/oncologist in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. He joined the hospital staff in 2013.

Dr. Moore received his medical degree from the University of Florida and completed a pediatric residency at Orlando Health and a hematology/oncology/bone marrow transplant fellowship at the University of Colorado in Denver. Dr. Moore is an instructor of pediatrics for Johns Hopkins University School of Medicine and his clinical interests include a focus on acute lymphoblastic leukemia (ALL).  Additionally, he specializes in Medical Informatics and studies improving patient safety through enhancing the electronic medical record. 

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Benjamin Reed Oshrine, M.D. 

Dr. Oshrine specializes in blood and marrow transplants as a pediatric hematologist/oncologist in the Johns Hopkins All Children’s Cancer & Bone Marrow Disorders Institute. His clinical focus is in the treatment of high-risk leukemias with blood and marrow transplantation, and his research focus is in immune recovery after transplant. He joined the hospital in 2014 after completing a fellowship in pediatric hematology/oncology at the Children’s Hospital of Philadelphia.

Dr. Oshrine earned his medical degree from the University of Virginia School of Medicine and completed his residency at Boston Children’s Hospital.

He is certified by the American Board of Pediatrics and a member of the American Society of Pediatric Hematology/Oncology, the Children’s Oncology Group, the American Society of Blood and Marrow Transplantation and the American Society of Clinical Oncology.

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Damon R Reed, M.D.

Dr. Reed specializes in sarcomas in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. He joined the hospital in 2008.

He also is director of the Adolescent and Young Adult (AYA) Program at H. Lee Moffitt Cancer Center, which collaborates with the Johns Hopkins All Children’s AYA Program.  He is the medical director of the sarcoma program at Moffitt. He leads the National Pediatric Cancer Foundation’s Sunshine Project, a pediatric phase I research consortium with active trials accruing patients across the country and other trials being developed.  He also runs an active lab with support from the National Pediatric Cancer Foundation (nationalpcf.org), the V Foundation, and other community supports.

Dr. Reed earned his medical degree from Case Western Reserve University School of Medicine in Cleveland, Ohio. He completed a pediatric residency program at Boston Children’s Hospital and a pediatric hematology/oncology fellowship at St. Jude’s Children’s Hospital.

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Peter Shaw, MD

Peter Shaw, M.D.

Dr. Shaw joined the Johns Hopkins All Children’s Cancer & Blood Disorders Institute in August 2016 as deputy director and currently also serves as the institute’s interim director. He works collaboratively with the entire hematology-oncology team and other pediatric specialists at Johns Hopkins All Children’s Hospital to provide comprehensive care throughout each patient’s cancer journey and provide the best outcomes for children, teens and young adults with cancer.

Dr. Shaw is recognized nationally as a leader in the areas of adolescent and young oncology (AYA). He is founding member of the Consortium of Adolescent and Young Adult Cancer Centers and helped develop internally recognized standards for care of this population.

Dr. Shaw previously was clinical director of oncology and director of the hematology/oncology clinic at the institute from Children’s Hospital of Pittsburgh, where he established one of the nation’s first AYA programs, providing care for teens ages 15 to 22. He has presented at national and international oncology meetings, authored numerous papers and case reports published in peer-reviewed journals, and is an associate editor of the Journal of Pediatric Hematology/Oncology.

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Stacie L Stapleton, M.D.

Dr. Stapleton is the director of pediatric neuro-oncology at Johns Hopkins All Children’s Hospital. Dr. Stapleton joined the hospital in 2007 and is double-board certified by the American Board of Pediatrics in general pediatrics and pediatric hematology/oncology. She has formal training in pediatric neuro-oncology.
 
Dr. Stapleton is on the Pediatric Palliative Care Team at Johns Hopkins All Children’s and she specializes in symptom control and end of life care. She has been awarded a $247,000 grant for clinical research in pediatric palliative care and nearly $350,000 in grant funds for her work in phase I studies for patients with brain and spinal cord tumors.  Dr. Stapleton’s research experience includes investigator-initiated and multi-center research projects.
 
Dr. Stapleton is an associate professor of pediatrics at the University of South Florida and an assistant professor in the department of pediatrics at Johns Hopkins University.
 
Dr. Stapleton completed her medical training at St. Louis University School of Medicine, residency training at Lackland Air Force Base in Texas and fellowship training at Baylor College of Medicine/Texas Children’s Hospital. Dr. Stapleton also served 13 years in the United States Air Force.  Dr. Stapleton is a member of the American Board of Pediatrics, the Children’s Oncology Group, the Society of Neuro-Oncology, American Society of Pediatric Hematology/Oncology, and America Academy of Hospice and Palliative Medicine.

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Gauri Sunkersett, D.O.

Dr. Sunkersett specializes in pediatric hematology, oncology and bone marrow transplantation in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. Her areas of clinical focus and interest include stem cell transplantation, graft-versus-host disease, immunotherapy, T-cell regulation, high-risk leukemia, primary immunodeficiencies, gut microbiota and biomarkers.  She has been published in leading journals in her field and invited to national conferences to present her research.

Dr. Sunkersett joined Johns Hopkins All Children’s in 2017 after completing a clinical fellowship in pediatric hematology/oncology at Children’s Medical Center at the University of Texas Southwestern in Dallas and a subspecialized clinical fellowship in pediatric bone marrow transplantation at the University of California, San Francisco Benioff Children’s Hospital.

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Jessica M Wishnew, M.D.

Dr. Wishnew specializes in pediatric hematology/oncology in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. She joined the hospital staff in 2014. She has been the interim director of the sickle cell program since 2016.

Dr. Wishnew earned her medical degree from the University of Pittsburgh School of Medicine. Dr. Wishnew trained in pediatrics through the residency program at Children’s Hospital of Pittsburgh of UPMC and completed a fellowship in pediatric hematology/oncology at Duke Children’s Hospital and Health Center.

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