Hofstra Pride statues

Medical Physics Steering Committee

Program Director, Adam C. Riegel, PhD, DABR

Adam C. RiegelDr. Riegel earned his undergraduate physics degree at Vassar College (BA general and departmental honors) in 2004 and pursued graduate education at the University of Texas M. D. Anderson Cancer Center where he received a PhD in Medical Physics in 2010.

Dr. Riegel has been a clinical medical physicist in the Department of Radiation Medicine of Northwell Health since 2010. He is certified by the American Board of Radiology in therapeutic medical physics and holds the positions of assistant professor in the Hofstra School of Medicine and adjunct associate professor in the Hofstra College of Liberal Arts and Sciences.

Dr. Riegel splits his time between clinical medical physics, research, and education of physics students and medical residents.  Research interests include therapeutic applications of PET/CT imaging, quality assurance of deformable image registration, clinical implementation of optically-stimulated luminescent dosimeters for in vivo dosimetry, and image-guided radiation therapy. 

Dr. Riegel is a member of the American Association of Physicists in Medicine (AAPM), the American Society for Radiation Oncology (ASTRO), and serves as an editor for the Journal of Applied Clinical Medical Physics.

Assistant Program Director, Peter K. Taylor, MEd, MS

Peter Taylor earned his undergraduate degree in Physics at Penn State University in 2010, his Masters of Education at Bloomsburg University of Pennsylvania in 2013 with a focus in curriculum development and secondary physics education, and his Masters of Science in therapeutic Medical Physics at Purdue University in 2014.

Peter completed his CAMPEP accredited, therapeutic medical physics residency at Northwell Health in 2017. Peter joined Northwell Health’s Department of Radiation Medicine in 2018 as a clinical medical physicist. He holds the position of Instructor in the Hofstra College of Liberal Arts and Sciences.

Peter’s clinical responsibilities are divided between Lenox Hill Hospital in Manhattan and The Center for Advanced Medicine on Long Island. Peter is involved in the education of medical physics graduate students, medical physics residents, and radiation oncology medical residents. His interests are in clinical workflow and standardizing radiation oncology nomenclature, stereotactic radiation therapy treatment planning, and facilitating the involvement of graduate students in the Department of Radiation Medicine.

Peter is a member of the American Association of Physicists in Medicine (AAPM) and the Radiological and Medical Physics Society of New York (RAMPS). In his free time, Peter enjoys backpacking, rock climbing, cycling, and skiing.

Department of Physics & Astronomy Chairman, Gregory Levine, PhD

Gregory LevineGregory Levine received his Ph.D. in Physics from Columbia University in 1989 and was a postdoctoral fellow at the Texas Center for Superconductivity before joining the Physics Department at Hofstra in 1993.

In 2004-6, Professor Levine was a KITP Scholar at the Kavli Institute for Theoretical Physics at the University of California. He has twice received research grants from the Research Corporation / Cottrell Foundation. Professor Levine has worked in the fields of nonlinear dynamics, strongly correlated systems (such as superconductivity and low dimensional magnetism), dissipative quantum systems and quantum information.  

In Quantum Information, Dr. Levine's research has recently focused on the question of how entanglement dynamically evolves in a system with many quantum particles. He has also begun a project exploring the use of the newly discovered correspondences (dualities) between gravitational physics and quantum field theory to study entanglement entropy. Although these dualities were developed in string theory in a high energy physics context, they present a promising approach to a certain class of problems in condensed matter physics. In Dissipative Quantum Systems, his research focuses on the quantum mechanics of “open systems”—the quantum mechanics of systems embedded in a large and stochastic environment. This subfield of physics attempts to address how classical physics, which governs macroscopic or large scale physics behavior, emerges from quantum mechanics, which governs the microscopic or small scale behavior. This topic is at the frontier of modern theoretical physics and has a direct impact upon a number of pure and applied fields of physics such as quantum computing, conductivity and superconductivity in strongly correlated materials, and quantum cosmology.

Northwell Department of Radiation Medicine Chief Physicist, Yijian Cao, PhD, DABMP

Dr. Yijian CaoDr. Yijian Cao received his Ph.D in condensed matter physics from University of Missouri-Columbia. Since then accumulated over 20 years of experience in radiation oncology physics and certified by American Board of Medical Physics, Dr. Cao serves as chief physicist in department of radiation medicine of Northwell Health. Besides overseeing all physics services and supports to clinic, he has been mainly able to focus on integrations of clinical physics and research, and creating opportunities for physicists and other clinical staff to engage in graduate education and resident training programs. His research interests are in the areas of radiation treatment planning, imaging analysis, and optimization of clinical operations. Dr. Cao has appointment of assistant professor in Hofstra University School of Medicine, and adjunct associate professor in the Department of Physics and Astronomy.

Northwell Department of Radiation Medicine Chairman, Louis Potters, MD, FACR, FASTRO

Louis PottersDr. Potters received a BS from Emory University and his MD from the University of Medicine and Dentistry of New Jersey. He is board-certified in internal medicine and radiation oncology.

Dr. Potters served as an Associate Professor of Radiation Oncology at Memorial Sloan Kettering Cancer Center and then as medical director of the New York Prostate Institute. He then came to Northwell where he is a Professor and Chairman of the Department of Radiation Medicine for the Northwell Health and Hofstra Northwell School of Medicine. He is also the Co-Executive Director for the Northwell Cancer Institute. Additionally, Dr. Potters is Chairman of the Executive Committee of the Northwell Medical Group. Dr. Potters is an internationally renowned expert in the treatment of prostate cancer including research with over 100 publications, book chapters, editorial and letters.

Dr. Potters has served as a Board member, and Chair and member of various committees at the American Society of Radiation Oncology. He is the senior author on several important ACR-ASTRO Guideline documents for radiation oncology. He serves on several executive committees at the RTOG.

Dr. Potters is a consultant to the US Nuclear Regulatory Commission, a reviewer for the Agency for Healthcare Research and Quality (AHRQ), is a member of the executive committee of the Commission on Cancer, has served on several panels at the National Quality Forum (NQF) and has served on several national committees of the US Department of Health and Human Services. Dr. Potters in on the editorial Boards of the journals Oncology, Brachytherapy, and Practical Radiation Oncology.

Dean of the Hofstra College of Liberal Arts and Sciences, Benjamin Rifkin, PhD

Benjamin Rifkin, PhDDr. Benjamin Rifkin is Dean of the College of Liberal Arts and Sciences and Professor of Russian at Hofstra University in Hempstead, New York. His teaching and research interests lie in foreign language education, applied linguistics, second language acquisition, and contemporary Russian film. He has taught courses on Russian literature, film, applied linguistics, and methods of teaching foreign languages, including graduate and freshmen seminars, as well as Russian language courses from first- through fifth-year Russian. Rifkin has published over two dozen articles in peer-reviewed journals both in the USA and Russia, as well as chapters in edited volumes on these topics. He is the author or co-author of textbooks for Russian including Advanced Russian through History (Yale University Press), and Panorama: Intermediate Russian Language and Culture (Georgetown U. Press). Rifkin was the leader of the RAILS (Russian Advanced Interactive Listening Series) Project at the University of Wisconsin-Madison, funded by a grant from the US Department of Education. He has served on the Editorial Board of the Slavic & East European Journal, the Russian Language Journal, the NECTFL Review, and the Foreign Language Annals. He has also served on the boards of directors of the American Association of Teachers of Slavic and East European Languages (and served as president of the association), the American Council of Teachers of Russian, the Northeast Conference (on Language Teaching), the American Council on the Teaching of Foreign Languages, and the NJ Council for the Humanities. He has been recognized by awards for scholarship (AATSEEL), teaching and advising (University of Wisconsin-Madison), and service (AATSEEL, ACTR, Middlebury College).