Dr. Stapleton is the division chief of oncology and director of pediatric neuro-oncology at Johns Hopkins All Children’s Hospital. Dr. Stapleton joined the hospital in 2007. She has formal training in pediatric neuro-oncology. She received the Armstrong Award for Quality and Patient Safety for Johns Hopkins All Children's in the 2024 Johns Hopkins Medicine Clinical Awards. 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 numerous grants for phase I studies for patients with brain and spinal cord tumors as well as clinical research in pediatric palliative care. 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. Dr. Stapleton is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. Her top areas of expertise are Medulloblastoma, Embryonal Tumor with Multilayered Rosettes, Glioma, Histiocytosis, and Bone Marrow Aspiration.

Zanetta Lamar is an Oncologist and a Hematologist in Naples, Florida. Dr. Lamar is rated as an Experienced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. Her top areas of expertise are Large-Cell Immunoblastic Lymphoma, Non-Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), Splenic Neoplasm, and Bone Marrow Transplant. Dr. Lamar is currently accepting new patients.

Marco Ruiz-Andia is a Hematologist Oncology provider in Stuart, Florida. Dr. Ruiz-Andia is rated as an Experienced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Multiple Myeloma, Smoldering Multiple Myeloma, Large-Cell Immunoblastic Lymphoma, Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Ruiz-Andia is currently accepting new patients.

Scott Bradfield is a Pediatric Hematologist Oncology provider in Jacksonville, Florida. Dr. Bradfield is rated as a Distinguished provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Ewing Sarcoma, Rhabdomyosarcoma, Osteosarcoma, Langerhans Cell Histiocytosis, and Bone Marrow Aspiration.

Dr. Alrazzak specializes in pediatric hematology and oncology in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute in St. Petersburg, Florida. He joined the hospital staff in 2024. He was previously an attending physician in pediatric hematology and oncology and chair of the Department of Pediatrics at Palm Beach Children’s Hospital in West Palm Beach, Florida. He earned his medical degree from University of Aleppo in Syria. He completed a pediatric residency at Miami Children’s Hospital, followed by a fellowship in pediatric hematology and oncology at State University of New York at Buffalo. He speaks English and Arabic. Dr. Alrazzak is rated as an Experienced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Sickle Cell Disease, Febrile Neutropenia, Acute Lymphoblastic Leukemia (ALL), and Hemoglobin SC Disease.

Joseph Rosenblatt is a Hematologist Oncology specialist and a Hematologist in Miami, Florida. Dr. Rosenblatt is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Non-Hodgkin Lymphoma, Anaplastic Large Cell Lymphoma, Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), and Bone Marrow Transplant. Dr. Rosenblatt is currently accepting new patients.

William Slayton is a Pediatric Hematologist Oncology provider in Gainesville, Florida. Dr. Slayton is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Langerhans Cell Histiocytosis, Reticulohistiocytoma, Histiocytosis, Acute Lymphoblastic Leukemia (ALL), and Bone Marrow Aspiration.

Lubomir Sokol is a Hematologist and an Oncologist in Tampa, Florida. Dr. Sokol is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are T-Cell Lymphoma, Cutaneous T-Cell Lymphoma (CTCL), Non-Hodgkin Lymphoma, Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Sokol is currently accepting new patients.

Allison Bechtel is a Pediatric Hematologist Oncology provider in Jacksonville, Florida. Dr. Bechtel is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. Her top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Langerhans Cell Histiocytosis, Sickle Cell Disease, and Hereditary Neuroblastoma.

Ziad Khatib is a Pediatric Hematologist Oncology provider in Homestead, Florida. Dr. Khatib is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Medulloblastoma, Glioma, Embryonal Tumor with Multilayered Rosettes, Neurofibromatosis Type 1 (NF1), and Bone Marrow Aspiration.

Julio Barredo is a Pediatric Hematologist Oncology provider in Miami, Florida. Dr. Barredo is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Leukemia, Hepatoblastoma, Langerhans Cell Histiocytosis, and Bone Marrow Aspiration.

Enrique Escalon is a Pediatric Hematologist Oncology provider in Miami, Florida. Dr. Escalon is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Hepatoblastoma, Langerhans Cell Histiocytosis, Reticulohistiocytoma, Histiocytosis, and Bone Marrow Aspiration.

Fouad Hajjar is a Pediatric Hematologist Oncology provider in Orlando, Florida. Dr. Hajjar is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Hepatoblastoma, Reticulohistiocytoma, Histiocytosis, Langerhans Cell Histiocytosis, and Bone Marrow Aspiration.

Erlyn Smith is a Pediatric Hematologist Oncology provider in Orlando, Florida. Dr. Smith is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. Her top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Neuroblastoma, Langerhans Cell Histiocytosis, Histiocytosis, and Bone Marrow Aspiration.

Don Eslin is a Pediatric Hematologist Oncology provider in Tampa, Florida. Dr. Eslin is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Embryonal Tumor with Multilayered Rosettes, Neuroblastoma, Medulloblastoma, Glioma, and Bone Marrow Aspiration.

Rochelle Maxwell is a Pediatric Hematologist Oncology provider in Orlando, Florida. Dr. Maxwell is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. Her top areas of expertise are Febrile Neutropenia, Acute Lymphoblastic Leukemia (ALL), Hemolytic Transfusion Reaction, and Sickle Cell Disease.

Bruce Bridewell is a primary care provider, practicing in Family Medicine in Estero, Florida. Dr. Bridewell is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Langerhans Cell Histiocytosis, Light Chain Deposition Disease (LCDD), IgG4-Related Disease, and MAGIC Syndrome. Dr. Bridewell is currently accepting new patients.

Guillermo De Angulo is a Pediatric Hematologist Oncology provider in Miami, Florida. Dr. De Angulo is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Acute Lymphoblastic Leukemia (ALL), Febrile Neutropenia, Hereditary Neuroblastoma, and Neuroblastoma.

Mark Mogul is a Pediatric Hematologist Oncology specialist and a Hematologist in Orlando, Florida. Dr. Mogul is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. His top areas of expertise are Ependymoma, Langerhans Cell Histiocytosis, Histiocytosis, Reticulohistiocytoma, and Bone Marrow Aspiration. Dr. Mogul is currently accepting new patients.

Vibhuti Agarwal is a Pediatric Hematologist Oncology provider in Orlando, Florida. Dr. Agarwal is rated as an Advanced provider by MediFind in the treatment of Langerhans Cell Histiocytosis. Her top areas of expertise are Sickle Cell Disease, Febrile Neutropenia, Acute Lymphoblastic Leukemia (ALL), and Hemoglobinopathy.