Overview
Jonathan Powell is an Oncologist in Baltimore, Maryland. Dr. Powell is rated as a Distinguished provider by MediFind in the treatment of Reticulohistiocytoma. His top areas of expertise are Reticulohistiocytoma, Adult Soft Tissue Sarcoma, Rhabdomyosarcoma, and Rosai-Dorfman Disease.
His clinical research consists of co-authoring 124 peer reviewed articles and participating in 5 clinical trials. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 3 articles and participated in 3 clinical trials in the study of Reticulohistiocytoma.
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Locations
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
5 Clinical Trials
Sidney Kimmel Comprehensive Cancer Center
Dr. Lode J. Swinnen is a cancer specialist in Baltimore caring for patients with lymphoma. Dr. Swinnen received his M.B.Ch.B. degree from the University of Cape Town Medical School. He completed his residency at Presence Saint Joseph Hospital and performed a fellowship in hematology-oncology at Loyola University Stritch School of Medicine. Dr. Swinnen joined the Johns Hopkins faculty in 2002. His research interests include lymphomas and immunodeficiency-associated malignancies. Dr. Swinnen is a member of the Eastern Cooperative Oncology Group and the National Comprehensive Cancer Network. Dr. Swinnen is rated as a Distinguished provider by MediFind in the treatment of Reticulohistiocytoma. His top areas of expertise are Non-Hodgkin Lymphoma, Diffuse Large B-Cell Lymphoma (DLBCL), Hodgkin Lymphoma, Small Lymphocytic Lymphoma (SLL), and Bone Marrow Transplant.
Maryland Oncology Hematology PA
Peter Graze is a Hematologist Oncology specialist and a Hematologist in Columbia, Maryland. Dr. Graze is rated as a Distinguished provider by MediFind in the treatment of Reticulohistiocytoma. His top areas of expertise are Lung Cancer, Small Cell Lung Cancer (SCLC), Pleuropulmonary Blastoma, and Non-Small Cell Lung Cancer (NSCLC). Dr. Graze is currently accepting new patients.
Sidney Kimmel Comprehensive Cancer Center
Richard F. Ambinder, M.D., Ph.D., currently serves as the James B. Murphy Professor of Oncology and the Director of the Division of Hematologic Malignancies at the Johns Hopkins Kimmel Cancer Center. He is program co-leader of the Hematologic Malignancies and Bone Marrow Transplantation Program and leads the AIDS Malignancy Consortium (AMC) site at Johns Hopkins and the AMC Translational Sciences Working Group nationally. Dr. Ambinder graduated from Harvard College with a Bachelor’s degree in biochemistry, after which he received his medical degree from the Johns Hopkins University School of Medicine before completing his residency at the Johns Hopkins Hospital. He also earned his Ph.D. in pharmacology from the Johns Hopkins University, and completed his oncology fellowship at Johns Hopkins. Within the clinic, Dr. Ambinder is active in the treatment of lymphoma and Kaposi’s sarcoma. Dr. Ambinder’s research is focused on exploring opportunities to prevent or treat cancer with viral infections. Virus-associated tumors are among the most common malignancies in certain populations and regions. For instance, Burkitt's lymphoma (EBV) and Kaposi's sarcoma (KSHV) are common in equatorial Africa, nasopharyngeal carcinoma (EBV) is common in southern Chinese populations or those with southern Chinese origins, and immunoblastic lymphomas (EBV) are common in immunocompromised patients (organ transplant recipients, AIDS patients, etc). Thus, Dr. Ambinder’s new approaches to prevention, diagnosis, and treatment stand to have a direct impact on the lives of cancer patients around the globe. Additionally, the study of how viruses can impact these tumors is important in creating model systems for the development of new approaches to cancer care. Currently, many immunotherapies target unidentified antigens, making the measurement of relevant immune responses problematic at best. However, in EBV-associated tumors the antigens are well defined, thus allowing the Ambinder lab to define the epitope-specific cellular immune responses. As a result of this breakthrough, interventions designed to alter immune response —whether they be vaccine based interventions, adoptive immunotherapy interventions, or pharmacologic interventions — may all be assessed in terms of relevant surrogate markers. Much in the same way the treatment of Hodgkin's lymphoma with radiotherapy and chemotherapy paved the way for the modern approach to cancer treatment more broadly, the treatment of EBV-associated tumors (including Hodgkin's lymphoma) may pave the way to the more generalized use of these modalities to treat a myriad of cancer types. Dr. Ambinder is rated as an Elite provider by MediFind in the treatment of Reticulohistiocytoma. His top areas of expertise are Hodgkin Lymphoma, Non-Hodgkin Lymphoma, B-Cell Lymphoma, Tissue Biopsy, and Bone Marrow Aspiration.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- ReticulohistiocytomaDr. Powell isDistinguished. Learn about Reticulohistiocytoma.
- Experienced
- Acute Lymphoblastic Leukemia (ALL)Dr. Powell isExperienced. Learn about Acute Lymphoblastic Leukemia (ALL).
- Adult Soft Tissue SarcomaDr. Powell isExperienced. Learn about Adult Soft Tissue Sarcoma.
- AgranulocytosisDr. Powell isExperienced. Learn about Agranulocytosis.
- AstrocytomaDr. Powell isExperienced. Learn about Astrocytoma.
- Bone TumorDr. Powell isExperienced. Learn about Bone Tumor.
- Embryonal Tumor with Multilayered Rosettes

