Gustavo A. Fonseca, MD, FACP
Director, Research & Clinical TrialsDr. Fonseca is a board-certified hematologist and medical oncologist with Florida Cancer Specialists & Research Institute.
Dr. Fonseca is deeply committed to the practice of oncology and has extensive community research experience. From 2021 to 2024, Dr. Fonseca served as the FCS medical director of clinical research and currently serves as director of research & clinical trials. He is heavily engaged in a range of initiatives that are expanding the body of knowledge of cancer and contributing to the development of many promising new drugs and therapies. He has authored numerous articles published in peer-reviewed journals and presented at worldwide symposiums.
After receiving his medical degree from the Universidad Del Norte School of Medicine in Colombia, Dr. Fonseca completed his internal medicine residency at Jackson Memorial Hospital at the University of Miami. While there, he served a fourth year as adjunct medical school faculty and as chief resident of a program responsible for 150 residents. He then proceeded with his fellowships in oncology and hematology at MD Anderson Cancer Center at the University of Texas and at Methodist Hospital at Baylor School of Medicine in Houston.
Dr. Fonseca is a fellow of the American College of Physicians (ACP). He is a member of the American Society of Clinical Oncology (ASCO), the American Society of Hematology (ASH). and a governing board member of Bayfront Seven Rivers Hospital. He previously served as president of the Citrus County Medical Society and chief of staff of Citrus Memorial Hospital.
- Hematology
- Medical Oncology
- English
- German
- Spanish
Medical School
Universidad Del Norte – School of Medicine, Barranquilla, Colombia
Education
Universidad del Norte – Barranquilla, Colombia
Residency
University of Miami – Jackson Memorial Hospital
Fellowship
Oncology/Hematology – University of Texas – MD Anderson Cancer Center, Houston, Texas
Oncology/Hematology – Baylor School of Medicine – Methodist Hospital, Houston, Texas
Board Certification
Hematology
Medical Oncology
Honors & Achievements
Community
American College of Physicians
Citrus County Medical Society
Florida Myelodysplasia Consortium
Society of Clinical Oncology
In 2003, Anne was diagnosed with myelodysplasia 5q-, a rare bone marrow disorder that affects the development of red blood cells, often leading to anemia and enlarged red blood cells. When she learned of her condition, her current care provider told her she likely only had five years to live. Fortunately, through a support group, she learned of an innovative clinical trial offering under the supervision of Gustavo A. Fonseca, MD, FACP, medical oncologist and hematologist at Florida Cancer Specialists & Research Institute, and was able to enroll. Now, 20 years later, she recalls the many milestones she’s experienced since her diagnosis and extends her gratitude to Dr. Fonseca, her FCS care team, and above all, the clinical trial (now a standard of treatment) that saved her life.
Dr. Gustavo Fonseca – Florida Cancer Specialists
Leslie Fraze Patient Testimonial – Dr. Gustavo Fonseca, Florida Cancer Specialists