Penn Gamma Knife Center at Pennsylvania Hospital
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Q&A Sessions: Ask Your Questions

John Y.K. Lee, MD has answered your questions about Gamma Knife radiosurgery.

John Y.K. Lee, MD is the medical director of the Penn Gamma Knife Center and assistant professor of neurosurgery at Penn Medicine. His practice focuses on functional neurosurgery and Gamma Knife radiosurgery. He has expertise in the surgical treatment of movement disorders such as Parkinson's disease, essential tremor and dystonia.

Dr. Lee has a focused interest in the treatment of pain syndromes, especially trigeminal neuralgia, central pain and complex structural spine pain. In addition, he has specialized experience in the use of the Gamma Knife to treat brain tumors, vascular malformations and functional disorders.

Dr. Lee attended Yale University where he graduated magna cumlaude in Molecular Biophysics and Biochemistry. He received his medical degree from UMDNJ - Robert Wood Johnson Medical School, where he was elected to Alpha Omega Alpha. Dr. Lee completed his residency training in neurological surgery at the University of Pittsburgh, where he also served as chief resident. He completed a fellowship in functional neurosurgery at the Cleveland Clinic before joining the University of Pennsylvania Health System.

Dr. Lee is board eligible by the American Board of Neurological Surgery. Dr. Lee will see patients at the Pennsylvania Hospital. Appointments for Dr. Lee can be made by calling 1-800-789-PENN (7366).


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Need an appointment? Request one online 24 hours/day, 7 days/week or call 800-789-PENN (7366) to speak to a referral counselor.

Gamma Knife and Leksell Gamma Knife are U.S. federally registered trademarks of Elekta Instrument S.A., Geneva, Switzerland. Photo credits: Susan Pardys, Elekta, Inc.

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