Marc A. Cohen MD, MPH is an Associate Attending on the Head and Neck Service and Surgical Director of the Multidisciplinary Skull Base Tumor Program at Memorial Sloan Kettering Cancer Center. He also serves as the Medical Director for Patient Access Programs for Memorial Hospital. Dr. Cohen completed medical school at the University of Pennsylvania School of Medicine, residency at the Hospital of the University of Pennsylvania, and fellowship at Princess Margaret Cancer Center / University of Toronto. He has clinical interest in open and endoscopic surgery for sinonasal malignancy, robotic surgery for oropharynx cancer, and minimally invasive surgery for head and neck cancers. His research has focused on oncologic and quality of life outcomes for those with skull base malignancy as well as novel technology in sinonasal tumor surgery. He has co-authored more than 115 papers on head and neck cancer and skull base surgery.