Our CyberKnife Specialists
Meet Our CyberKnife Team
Radiation Oncology
![](/-/media/images/beth-israel-org/team-members/stevenson-mary-ann.jpg)
Mary Ann Stevenson, MD, PhD
Chair and Chief, Radiation Oncology
![](/-/media/images/beth-israel-org/team-members/kaplan-irving-david.jpg)
Irving David Kaplan, MD
Co-Director, Prostate Cancer Program; Radiation Oncology
![](/-/media/images/beth-israel-org/team-members/center-and-department/radiation-oncology/matthew-abrams.jpg)
Matthew Abrams, MD
Radiation Oncology
![Nima Aghdam, MD](/-/media/images/beth-israel-org/team-members/nima-aghdam-md-80x100px.jpg)
Nima Aghdam, MD
Radiation Oncology
![](/-/media/images/beth-israel-org/team-members/aronovitz-joseph-a.jpg)
Joseph A. Aronovitz, MD, PhD
Radiation Oncology
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Stuart M. Berman, MD
Radiation Oncology
![Dr. Lauren Hertan, Radiation Oncologist](/-/media/rich-text-images/beth-israel-org/locations/clinical-services/silhouette-female/lauren-hertan.jpg)
Lauren M. Hertan, MD, MS
Radiation Oncology
![Elena Nedea, MD](/-/media/images/beth-israel-org/team-members/elena-nedea-md-80x100px.jpg)
Elena A. Nedea, MD
Radiation Oncology
![Brigid M. O'Connor, MD](/-/media/images/beth-israel-org/team-members/brigid-oconnor-md-80x100px.jpg)
Brigid O'Connor, MD
Radiation Oncology
![](/-/media/images/beth-israel-org/team-members/center-and-department/radiation-oncology/daniel-schmidt.jpg)
Daniel Schmidt, MD, PhD
Prostate Cancer Program; Radiation Oncology
Neuro-Oncology
![](/-/media/images/beth-israel-org/team-members/wong-eric-t.jpg)
Eric T. Wong, MD
Director, Neuro-Oncology Unit; Co-Director, Brain Tumor Program
Surgery
![](/-/media/images/beth-israel-org/team-members/callery-mark-p.jpg)
Mark P. Callery, MD, FACS
Chief, General Surgery
![Sidhu Gangadharan](/-/media/images/beth-israel-org/team-members/gangadharan-sidharta-p/sidhu-gangadharan-md-80x100.jpg)
Sidhu Gangadharan, MD
Chief, Thoracic Surgery and Interventional Pulmonology; Thoracic and Cardiac Surgery
![Learn more about Dr. Wagner](/-/media/images/beth-israel-org/team-members/wagner-andrew-a/andrew-wagner-80x100.jpg)
Andrew A. Wagner, MD
Director, Minimally Invasive Urologic Surgery