Board Certified in Medical Oncology and Internal Medicine. Dr. Visvalingam has been in clinical practice for over 6 years. He graduated from Boston University School of Medicine in 1998 and completed Internal Medicine residency and fellowship training in hematology/oncology at Winthrop-University Hospital in 2003. He practiced for three years in South Carolina and is currently in private practice in Central Florida. Throughout his career he has been actively enrolling patients in clinical trials and has been a sub-investigator in multiple oncology clinical trials.