Jeffrey Greenfield, MD, PhD, has been named residency director for the Department of Neurological Surgery. Dr. Greenfield, who is Professor of Neurological Surgery in Pediatrics and Vice Chair for Academic Affairs, has been associate director of the program since 2014. He takes the reins from Dr. Michael Kaplitt, who steered the program through more than a decade of tremendous growth and challenges. Dr. Greenfield, who completed his own residency here in 2008, will assume responsibility for developing the training curriculum for our residents as well as cultivating a network of resident alumni to tap for advice and mentorship.
“Dr. Kaplitt provided more than a decade of stellar leadership,” says Dr. Greenfield. “During his tenure, our program witnessed enormous clinical growth and research activity. During a time of increasingly restrictive work hours and challenges, particularly through the apex of the Covid crisis and recovery in NYC, his stewardship has been essential, and we owe him an enormous debt of gratitude for his vision and leadership.”

Dr. Michael Kaplitt
Dr. Kaplitt, Professor of Neurological Surgery and Executive Vice Chair of the department, became director of the residency program in 2011. “He has played a vital role in shaping the curriculum, especially through adding clinical rotations and infolded fellowship for our residents,” says Dr. Philip E. Stieg, Chair and Neurosurgeon-in-Chief of NewYork-Presbyterian/Weill Cornell Medicine and Margaret and Robert J. Hariri, MD ’87, PhD ’87 Professor of Neurological Surgery. Dr. Kaplitt, who heads the Movement Disorders service at Weill Cornell and spent a decade as Vice Chair for Research here, will take over managing our nearly $10 million research portfolio, covering 64 active clinical protocols and clinical trials in addition to laboratory research.
“Mike Kaplitt has been a vital partner to me in developing Weill Cornell into a powerhouse in neurosurgery,” says Dr. Philip E. Stieg, Chair and Neurosurgeon-in-Chief of NewYork-Presbyterian/Weill Cornell Medicine and Margaret and Robert J. Hariri, MD ’87, PhD ’87 Professor of Neurological Surgery. “He has guided a generation of neurosurgical residents for more than twenty years. I am deeply grateful to him for his dedication to resident education, to basic, clinical, and translational research, and to innovative and compassionate patient care.”

Dr. Ibrahim Hussain and Dr. Nelson Moss
Dr. Ibrahim Hussain will move into the assistant residency director position at NewYork-Presbyterian, with Dr. Nelson Moss becoming assistant residency director at Memorial Sloan Kettering Cancer Center. (Our residents work at both hospitals and also participate in research at the Rockefeller Institute.) Dr. Hussain, an assistant attending neurological surgeon at Och Spine at NewYork-Presbyterian/Weill Cornell Medical Center and the Leonard and Fleur Clinical Scholar at Weill Cornell Medical College, completed his residency here in 2020. Dr. Moss, who is codirector of the multidisciplinary Brain Metastasis Program at MSKCC, completed his neurosurgery residency here in 2017.