Our Physicians and Staff

Introducing the experts of metastatic cancer treatment.

Fifteen years ago, one doctor shared his belief that the sobering diagnosis of metastatic cancer does not necessarily have to mean a resignation to palliative care. Today, the physicians and staff of the UF Health Metastatic Cancer Program strive to change the definition of “incurable,” by rejecting the notion that patients are untreatable just because a cancer has spread.

This revolutionary mission began with the vision of University of Florida radiation oncologist Dr. Paul Okunieff who has assembled a multidisciplinary team of highest-level experts in the cancer treatment field at UF.

Read below to find out more about our accomplished group of metastatic treatment specialists who serve as the foundation for the Metastatic Cancer Program at the UF Health. 

Dr. Paul Okunieff, M.D.Paul Okunieff, M.D.

Professor and Chair, UF Department of Radiation Oncology

Paul Okunieff, M.D., is board certified in therapeutic radiology and is among the pioneers of in-vivo nuclear magnetic resonance imaging of tumors.  Dr. Okunieff has active protocols to study the treatment of metastatic cancers with radiosurgery, and is developing protocols for the use of proton therapy in metastatic cancers. Dr. Okunieff earned his medical degree from Harvard Medical School, where he also completed his postdoctoral fellowship in medicine and a fellowship in radiation medicine at Massachusetts General Hospital.  Read More


Curtis Bryant, MDCurtis Bryant, M.D.

Assistant Professor of Radiation Oncology

Dr. Bryant is an Assistant Professor of Radiation Oncology. He specializes in the care of patients with prostate cancer, head and neck cancer and for patients with metastatic cancer. He received his undergraduate degree from Mary Washington University and medical degree from the University of North Carolina at Chapel Hill. He also received a Masters of Public Health from the University of North Carolina at Chapel Hill. He completed his residency training at the University of Florida. A burgeoning cancer researcher, he is the author of the recently published article Five-Year Biochemical Results, Toxicity, and Patient-Reported Quality of Life After Delivery of Dose-Escalated Image Guided Proton Therapy for Prostate Cancer which has documented the efficacy and safety of proton therapy for prostate cancer in a study that included over 1,300 patients treated at the University of Florida.


Roi Dagan, M.D., M.S.

Assistant Professor of Radiation Oncology

Dr. Dagan is a radiation oncologist and University of Florida Clinical Assistant Professor. Dr. Dagan treats head and neck cancer, breast cancer, prostate cancer and oligometastatic cancers. He previously served as the Chief Resident Physician for the University of Florida, Radiation Oncology department. Dr. Dagan was awarded the Roentgen Society Resident Research award in 2012, as well as is distinguished as the UF Outstanding Resident Educator for 2012.


Zuofeng LiZuofeng Li, D.Sc.

Physics Director

Dr. Li is responsible for the day-to-day technical operations of the University of Florida Proton Therapy Institute and the UF Metastatic Cancer Program on the UF Health Jacksonville, Fla.  campus. He has more than 10 years of experience, specializing in radiation physics, brachytherapy, image-based brachytherapy, and combined IMRT and brachytherapy delivery. He is a Professor at the University of Florida College of Medicine, Department of Radiation Oncology.