Meet the Radiation Medicine Team

Radiation oncology physicians

Radiation oncologists are physicians who are responsible for the medically appropriate and technically correct radiation treatment of patients with cancer. All of our radiation oncologists are board-certified in therapeutic radiology by the American Board of Radiology, licensed by the New York State Department of Health, and comply with the American College of Radiology standards of care.

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Michael Kuettel, MD, PhD, MBA
Professor and Chair
Department of Radiation Medicine
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Varun Chowdhry, MD
Medical Director
Southtowns Radiation Oncology
Orchard Park, NY
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Mark Farrugia, MD, PhD
Assistant Professor of Oncology
Department of Radiation Medicine
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Assistant Professor of Oncology
Department of Radiation Medicine
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Gregory Hare, MD
Medical Director
Milliman Radiation Medical Center
Olean General Hospital, Olean, NY
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Nadia Malik, MD
Assistant Professor of Oncology
Department of Radiation Medicine
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Maya Mathew, MD
Medical Director
Dorothy G. Griffin Radiation Oncology Center
Oneida Health Center, Oneida, NY
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David Mattson Jr, MD
Associate Professor of Oncology
Department of Radiation Medicine
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John Powell, MD
Medical Director, Radiation Medicine
Cayuga Medical Center, Ithaca, NY
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Dheerendra Prasad, MD, MCh, FACRO
Professor of Oncology and Medical Director
Department of Radiation Medicine
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Joshua Regal, MD, PhD
Joshua Regal, MD, PhD
Assistant Professor of Oncology
Department of Radiation Medicine
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Anurag Singh, MD
Professor of Oncology and Director of Radiation Research
Department of Radiation Medicine

The medical physics team

Our board-certified medical physicists are an important part of our multidisciplinary Radiation Medicine team, designing and maintaining the quality assurance of every individual treatment plan. They ensure that information has been correctly transferred to the machine, that the plan agrees with the physician’s prescription, and that all information is consistent, understandable and well-documented. They also contribute to the development of therapeutic techniques and collaborate with team members to design treatment plans.

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Matthew Podgorsak, PhD, FAAPM
Chief Medical Physicist
Department of Radiation Medicine
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Steven de Boer, MSc, FAAPM
Medical Physicist
Department of Radiation Medicine
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Anat Gopal, PhD
Medical Physicist
Department of Radiation Medicine
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Naveed Islam, PhD
Naveed Islam, PhD
Medical Physicist
Department of Radiation Medicine
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Harish Malhotra, PhD, DABR
Medical Physicist
Department of Radiation Medicine
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Daryl Nazareth, PhD, DABR
Medical Physicist
Department of Radiation Medicine
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Sanjay Raina, PhD, MSc
Medical Physicist
Department of Radiation Medicine
Cayuga Medical Center, Ithaca, NY
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James Steinman, MS, DABR
Medical Physicist
Department of Radiation Medicine
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Tara Tyson, PhD
Medical Physicist
Department of Radiation Medicine
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Dr. Iris Zhou Wang
Medical Physicist
Department of Radiation Medicine

The medical dosimetry team

Medical dosimetrists are professionals who design radiation treatment plans specific to each cancer patient’s prescription as determined by the radiation oncologist. This is done with state-of-the-art 3-dimensional graphics and patient imaging collaboration with other radiation oncology professionals.

Lee Hales, CMD, Chief Medical Dosimetrist
Kristen Brown, CMD
Morgan Ennis, CMD
Jeremy Garvin, CMD
Michael Griffin, CMD
Rachel Hackett, CMD, RTT – Southtowns Radiation Oncology, Orchard Park, NY
Carin R. Jordan, CMD, RTT
Virginia G. Lazarov, CMD, RTT
Lisa Ogle, CMD – Olean General Hospital, Olean, NY
Vanessa Rundle, CMD – Oneida Health Center, Oneida, NY
Jacqueline S. Zielan, CMD, RTT

Physician assistants

Leayn T. Flaherty
Jamie Fraas
Adam R. Oberkircher
Monica Slomba
Kelsey Smith
Valerie A. Stilb
Maria Zhu

Nurse practitioner

Julia Easton

Radiation therapy team

Radiation therapists plan and deliver the prescribed course of radiation therapy. Roswell Park has 19 full-time board-certified radiation therapists.

Jeanette Hardwick, RTT, BS, MBA, Supervising Radiation Therapist
Larry Alford, RTT
Gina Bellreng, RTT
Jennifer L. Buil, RTT
Patricia M. Chapin, RTT
Katelyn Costanzo, RTT
Maria Durlak, RTT
Nathan Groff, RTT
Tracy M. Hails, RTT
Julianne Hanes, RTT
Alexander Hollander, RTT
Jacquelyn Jackson, RTT
Teresa L. Kishel, RTT
Jamie Luby, RTT
Deborah L. Maving, RTT
Bohdan Nazarevych, RTT
Elizabeth, Saez, RTT
Angela Szczygiel, RTT
Amy L. Thompson, RTT

Radiation Medicine nurses

Brian Desmarais, RN
Rebecca Higgins, RN
Michele L. Holtz, RN
Mary Elizabeth Jurca, RN
Tabatha McCabe, LPN
Caitlin Morgante, RN
Mary Rachal, RN