Joy Anitra Masseaux, MD

Dr. Swenson specializes in pediatric radiology at Johns Hopkins All Children’s Hospital in St. Petersburg, Florida. He joined the hospital in 2025.  He was previously employed as a radiologist at Rhode Island Medical Imaging in Providence, RI for more than 10 years, during which time he served as an associate professor of Diagnostic Imaging, clinician educator at the Warren Alpert Medical School of Brown University.  His roles included clinical work in pediatric, musculoskeletal, and adult emergency radiology, as well as departmental leadership in Quality and Operations.   Dr. Swenson earned his medical degree from the Perelman School of Medicine at the University of Pennsylvania. He completed a medical internship at Abington Memorial Hospital in Pennsylvania, followed by a radiology residency at Warren Alpert Medical School of Brown University in Providence, Rhode Island, where he also served as chief resident. He then completed a fellowship in pediatric radiology at Boston Children’s Hospital / Harvard Medical School.

Dr. Alexander specializes in the care of hospital patients at Johns Hopkins All Children’s Hospital. Dr. Alexander earned his medical degree in osteopathic medicine from Kansas City University of Medicine and Biosciences. He completed his residency and served as chief resident at the University of Florida at Orlando Health Arnold Palmer Hospital for Children.Dr. Alexander is licensed and certified by the American Board of Pediatrics, the Florida Board of Medicine, Doctor of Osteopathy, DEA Registration, Pediatric Advanced Life Support and the Neonatal Resuscitation Program. He is a member of the American Academy of Pediatrics, the American Osteopathic Association and the Central Florida Pediatric Society.