About Dr. Massis
Dr. Massis is an established interventional radiologist whose practice includes complex vascular procedures, interventional oncology, and the increasingly demanding work of acute hospital-based interventional care. He is known for steady, decisive performance under pressure.
Patients regularly mention that he takes time to explain procedures in clear language — and that they leave appointments feeling like the path forward actually makes sense.
Areas of Focus
- Complex Vascular Procedures
- Acute & Hospital-Based IR
- Interventional Oncology
- Embolization Procedures
Education & Credentials
Board Certification: American Board of Radiology, CAQ — Interventional Radiology
Fellowship: University of South Florida — Vascular & Interventional Radiology
Residency: Mayo Clinic, Jacksonville — Diagnostic Radiology
Medical School: University of South Florida College of Medicine
Undergraduate: Jacksonville University
