G. Douglas Letson, M.D.
Executive Vice President of Clinical Affairs
Physician-In-Chief
Professor of Oncology,
Surgery, Radiology and Orthopaedics
Dr. Letson received his pre-doctoral training at the University of South Florida and attended medical school at Louisiana State University in New Orleans, Louisiana.
He then completed his Orthopedic Residency at Louisiana State University and continued on to complete a Musculoskeletal Tumor Surgery Fellowship at Harvard Medical School in Boston, Massachusetts. Within a year of taking a position at USF working at the H. Lee Moffitt Center and Research Center, he established the Sarcoma Program.
Dr. Letson is an internationally known surgeon and is well respected with his new developments and surgical techniques in limb salvage surgery. He speaks around the world on limb salvage surgical techniques and has developed multiple oncology systems for skeletal reconstruction.
He is presently undergoing research with new metals that allow for improved limb salvage in that the dome bone and soft tissue cancer and muscles can grow into the metallic prosthesis.
Ricardo Gonzalez, M.D.
Moffitt Cancer Center Sarcoma Department Program Leader
Moffitt Cancer Center Sarcoma Department
University of South Florida
Departments of Cutaneous and Interdisciplinary Oncology
Program Leader, Sarcoma Program
Dr. Gonzalez is an Assistant Professor of Oncological Sciences at Moffitt Cancer Center. He serves not only the Sarcoma Department, but also the Cutaneous Department as a general surgeon whose primary focus is on soft tissue sarcomas, desmoid tumors, and Gastrointestinal Stromal Tumors (GIST).
He is the Associate Chair of Midlevel Education at Moffitt Cancer Center and resides as the CME Chair of the Association of Physician Assistants in Oncology.
Jonathan Scott Zager, M.D.
Assistant Member and Surgical Oncologist in both the Cutaneous Oncology and Moffitt Cancer Center Sarcoma Department in Tampa, Florida.
Dr. Zager earned a medical degree at the Sackler School of Medicine, New York State/ American program at the University of Tel Aviv in Israel. He completed a general surgery residency at Montefiore Medical Center, part of the Albert Einstein College of Medicine in New York. Dr Zager has also completed a research fellowship in surgical oncology at Memorial Sloan-Kettering Cancer Center in New York as well as a clinical surgical oncology fellowship at the University of Texas M.D. Anderson Cancer Center in Houston.
Dr. Zager is board certified by the American Board of Surgeons with a subspecialty in surgical oncology.
Dr. Zager has published more than 60 articles, reviews, and book chapters. He has presented nearly 100 talks at both national and international surgical and oncology meetings. He currently serves on committees of numerous national and international work groups and societies such as the Society of Surgical Oncology and the Sentinel Node Oncology Foundation. He is a member of the editorial board for The World Journal of Surgical Oncology, and currently serves on the program committee for Florida Society of Clinical Oncology and the Regional Cancer Therapies Annual Meeting.
His research interests are in treating cutaneous melanoma as well as non-melanoma skin cancers and soft tissue sarcomas (both extremity and retroperitoneal sarcomas). He has a particular interest in minimally invasive limb perfusions (or isolated limb infusions) for extremity in transit or recurrent melanoma as well as serves as the PI on the Pivotal Delcath Liver Perfusion Phase III trial. He has also developed an interest in intraoperative PET probe directed surgery for difficult to localize metastatic lesions.
David Johnson, PA-C
Moffitt Cancer Center Sarcoma Department
University of South Florida
Department of Interdisciplinary Oncology
Dave Johnson, PA-C, graduated from Physician Assistant School at the University of Florida in 1993. He has worked in orthopedics for 13 years, 3 years encompassing orthopedic oncology. He currently is employed at the University of South Florida, Moffitt Cancer Center where he specializes in bone and soft tissue sarcomas and the management of primary and metastatic bone disease. He has been invited nationally to present on these diseases.
He is the Associate Chair of Midlevel Education at Moffitt Cancer Center and resides as the CME Chair of the Association of Physician Assistants in Oncology.
