Dr. Rosenzweig is the Director of Clinical Medical Physics in the Department of Radiation Oncology at the University of Rochester Medical Center. He entered the field in 1993 as a post-doctoral fellow in the same department, having completed his graduate research in the area of experimental nuclear physics at the University of Washington in Seattle.

A native of Wisconsin, Dr. Rosenzweig served as a senior staff physicist for 8 years at St. Luke's Medical Center in his hometown of Milwaukee. He then took the opportunity to rejoin colleagues here at the URMC in a leadership position as the department undertook the major initiiative of relocating to the new Wilmot Cancer Center in 2008. He is currently Supervisor of the Physicist and Dosimetrist clinical activities at the Wilmot Cancer Center and its affiliates. Oversight consists of clinical operations related to quality assurance of linear accelerators, CT's, treatment planning equipment, chart QA and all aspects of brachytherapy.

His main area of interest is external beam radiation therapy.

• Rosenzweig DP. Every patient receiving 3D or IMRT must have image-based target localization prior to turning on the beam. Against the proposition. Med Phys. 2003 Mar; 30(3):288-9.
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• Rosenzweig DP, Schell MC, Yu Y. Toward a statistically relevant calibration end point for prostate seed implants. Med Phys. 2000 Jan; 27(1):144-50.
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• Schell MC, Rosenzweig DP, Weaver KA, Fenton BM, Rubin P. Characterization of the dose perturbation by stents as a function of X-ray beam energy. Cardiovasc Radiat Med. 1999 Apr-Jun; 1(2):154-9.
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• Rosenzweig DP, Schell MC, Numaguchi Y. Quality assurance in linac-based stereotactic radiosurgery and radiotherapy. Med Dosim. 1998; 23(3):147-51.
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