Compassion. Quality. Care. Multidisciplinary Expertise.

Our physician team and staff have extensive experience treating patients with stereotactic radiation therapy. Combined with highly advanced CyberKnife® technology, CyberKnife’s expert team delivers quality care in a compassionate manner.


  • Dr. John Lamond M.D.

    Medical Director

    John Lamond, M.D. graduated from Hahnemann Medical School with AOA honors in 1991 after being awarded a full merit scholarship. During his radiation oncology residency at the University of Wisconsin he was trained in the emerging field of stereotactic radiosurgery and he authored many articles on the subject.

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  • Dr. Rachelle M. Lanciano M.D.

    Radiation Oncologist

    Rachelle M. Lanciano, M.D. is the Chief of Radiation Oncology at Delaware County Memorial Hospital. She received her medical degree from the Medical College of Pennsylvania and completed her residency in Radiation Oncology at the Hospital of the University of Pennsylvania.

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  • Dr. Luther W. Brady M.D.

    Director of Medical Research

    Luther W. Brady, M.D. is the founder of The CyberKnife Center of Philadelphia and one of the most distinguished pioneers in the field of radiation oncology. Virtually every radiation oncologist in the world is familiar with his text books and the Encyclopedia of Radiation Oncology (Brady-Yeager Eds.)

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  • Dr. Stephen A. Arrigo M.D.

    Radiation Oncologist

    Stephen A. Arrigo, M.D., graduated Summa Cum Laude with an undergraduate degree in Biology from the University of Rochester in 1969 and then attended New York University’s School of Medicine.

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  • Dr. William Ding M.D.

    Radiation Oncologist

    Dr. William Ding, M.D., graduated from Drexel University College of Medicine in 2007. He completed a residency in Radiation Oncology from California Pacific Medical Center in 2012. Dr. Ding is skilled in external-beam radiation therapy, stereotactic radiosurgery, brachytherapy and intraoperative radiation therapy.

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Medical Physicist

  • Jun Yang PhD., DABR

    Chief Medical Physicist

    Before joining Philadelphia CyberKnife as the chief physicist when the center was founded in March 2006, Dr. Yang practiced as a medical physicist at the University of Miami and at the CyberKnife Center of Miami.

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  • Michael Good RN

    Research Coordinator and CyberKnife Nurse

    Michael is the Research Coordinator and CyberKnife Clinical Nurse. After receiving his bachelor’s degree in nursing from the University of Maryland, he started his career as an Oncology Nurse at Johns Hopkins Hospital in Baltimore.

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