Our Staff
Executive Team
Thomas J. Petrone, PhD, DABR, DABMP
Chief Executive Officer and Chief Medical Physicist
Christopher Smitherman, MS, DABR, DABSNM
Chief Technical Officer and Director of Diagnostic Physics
Management Team
Maria G. Petrone
Director of Wellness and Environmental Efficiency
Alexander Petrone, MBA
Operations and Business Development Manager
Joseph Giardina, MS, DABSNM
Director of Nuclear, Health Physics and Radiation Safety
Samantha Bunsee
Medical Physics Program Coordinator
Technical Staff
Galina Desyatnik, PhD
Senior Medical Physicist and Radiation Safety Officer
Simon Murphy, MS, DABR
Regional Compliance Director and Senior Medical Physicist
Andrew Petrone, MS
Associate Physicist
Alena Roytlender, MS
Regional Compliance Director and Senior Medical Physicist
Elizabeth Hawkins, CMD
Certified Medical Dosimetrist
Ryan Joseph, MS, DABR
Senior Radiation Oncology Physicist
Chelsea M. Fleet, MS, DABR
Radiation Oncology Medical Physicist
Rebecca DiTusa, MS
Medical Physicist
Brian Hurley, MS
Medical Physicist – Diagnostic Imaging
Lucas Hockley, BS
Quality Control Engineer
Michelle Fernandez, BS, ARRT(N)
Medical Physics Resident - Diagnostic Imaging
Sara Lin
Medical Physics Resident – Diagnostic Imaging
Andreani Mouzourou, MS
Associate Health and Medical Physicist
Cynthia Augustin
QC Specialist
Karen Mak-Dumornay
QC Specialist
Michael Sarnelli
QC Specialist
Tiffany Lin, MS, DABR
Senior Medical Physicist
Albert Sabbas, PhD, DABR
Senior Medical Physicist
Maxine Barnes, MS, DABR
Senior Medical Physicist
Rich Kuo, MS, DABR
Senior Medical Physicist
Wayne Benjamin, MS, DABR
Senior Medical Physicist
Administrative Staff
Helen Russo
Assistant – Nuclear, Health and Radiation Oncology Physics
Suzy Harding
Assistant – Diagnostic Imaging Medical Physics
Associate Technical Staff
Michael Woolley, BS, CMD
Certified Medical Dosimetrist
Glen Naekel, MS, DABR
Senior Medical Physicist
John Sakellakis, MS, DABR
Senior Medical Physicist
Arthur Olson, PhD, DABR
Senior Medical Physicist
Larry Rothenberg, PhD, DABR
Senior Medical Physicist
Pat Zanzonico, PhD, DABR
Senior Medical Physicist
Kenneth Kopecky, PhD, DABR
Senior Medical Physicist
James Eisenbarth, MS, DABR
Senior Medical Physicist
Coleman Rosen, MS, DABR
Senior Medical Physicist