Jonathan Ian Weltz, DO

Teresa Gagliano-DeCesare, M.D., is a board-certified oncologist at the Eugene M. & Christine E. Lynn Cancer Institute, part of Baptist Health, at Boca Raton Regional Hospital. Dr. DeCesare specializes in breast oncology. She is fluent in English and Italian. Prior to joining Lynn Cancer Institute in 2006, Dr. DeCesarecompleted her internal medicine residency at Jackson Memorial Hospital in Miami, Florida. She also completed a postdoctoral fellowship in hematology and oncology at the Sylvester Comprehensive Cancer Center in Miami. Dr. DeCesare’s research has been published in multiple chapters of Breast Cancer: A Practical Guide and several academic publications. She takes the time to listen to and understand each patient and family, so she can provide the best treatment possible while incorporating their wishes. When she’s not taking care of patients, Dr. DeCesare enjoys traveling.

Matthen Mathew, M.D., is a board-certified medical oncologist at the Eugene M. & Christine E. Lynn Cancer Institute, part of Baptist Health, at Boca Raton Regional Hospital, with expertise in lung cancer, head and neck cancer, and benign hematology. Before joining Baptist Health, Dr. Mathew was an assistant professor of medicine in the Division of Hematology-Oncology, Vagelos College of Physicians and Surgeons at Columbia University. Dr. Mathew earned his medical degree at University of Florida College of Medicine. He completed his internal medicine residency at the Icahn School of Medicine at Mount Sinai, where he was selected to be chief resident. He then completed fellowship training in hematology and medical oncology at New York Presbyterian Hospital/ColumbiaUniversity Medical Center, where he was appointed chief fellow. In addition to his clinical expertise, Dr. Mathew has extensive experience in clinical trials research and immuno-oncology. He has been the site principal investigator for large, national cooperative group studies and has also designed and implemented trials focused on advancing new and more effective treatments for patients. He is a member of the American Society of Clinical Oncology and the American Board of Internal Medicine. Dr. Mathew believes a multidisciplinary approach to treatment is crucial for cancer care. His approach to patient care involves working together with the rest of the cancer care team — from surgeons to social workers — to ensure that patients have a strong support network during treatment. In his free time, Dr. Mathew enjoys spending time with his wife and three sons. His favorite activities include going to the beach, playing tennis and golfing.

Warren Brenner, M.D., is a board-certified medial oncologist and hematologist at the Eugene M. & Christine E. Lynn Cancer Institute, part of Baptist Health, at Boca Raton Regional Hospital. He specializes in the treatment of gastrointestinal cancer and multiple myeloma. Prior to joining Lynn Cancer Institute in 2006, Dr. Brenner completed his fellowship in hematology and medical oncology at Washington University in St. Louis, MO. During his internal medicine residency at St. Mary’s Health Center, he served as chief resident in internal medicine. An active researcher, Dr. Brenner has served as a principal investigator for numerous clinical trials. He has published work in journals such as Bone Marrow Transplant, Colorectal Cancer: Index & Reviews, and American Journal of Cancer Case Reports. He is also a member of the American Society of Clinical Oncology, American Society of Hematology and International Myeloma Foundation. Dr. Brenner’s approach to patient care is to provide patients with the most up-to-date information and treatment in the field of oncology. He focuses on each individual’s needs for the best possible result. When he is not seeing patients, Dr. Brenner enjoys spending time with family, traveling and golfing.