Cohen completed his residency training in neurosurgery at Mayo Clinic in Rochester, Minnesota. He also completed advanced fellowship training in two subspecialties: epilepsy surgery (Yale University) and skull base/cerebrovascular surgery (University of Arkansas Medical Sciences.) He also attained a master's degree in clinical research from Mayo Clinic Graduate School and Master's drgree in Business administration from Kelley School of business.
He is currently involved in the care of patients for a variety of brain tumors (gliomas and meningiomas,) complex brain tumors (skull base, acoustic, and pituitary tumors,) cerebral aneurysms and arteriovenous malformations, trigeminal neuralgia, hemifacial spasm, and seizures. Dr. Cohen performs approximately 400 brain operations per year.
Cohen is recognized internationally for his expertise in complex brain surgery and is regularly solicited as a speaker and to instruct courses in skull base surgery. He takes on the most difficult surgical cases with optimal results. He has developed endoscopic techniques that allow a surgeon to remove a brain tumor via nasal passages without opening the patient's skull. He also has helped refine fluorescent technologies that cause a brain tumor to “glow,” making it easier for a surgeon to see precisely where its margins are. He has written over 510 peer-reviewed publications, advancing the efficacy and safety of neurosurgical operations
Cohen's surgical success stories have been featured on CNN's "The Situation Room with Wolf Blitzer," CBS’ "The Doctors" and many others television events. He was featured on CNN for removal of a brain tumor located in a crucial part of the brain controlling important functions in a 19-year-old man while the patient was awake. He created a map of the function of his brain and avoided the important brain areas while removing the tumor. Whether it's performing operations on children with extreme forms of epilepsy or removing tumors through the nasal passage, Dr. Cohen works tirelessly to heal what is arguably the most delicate part of the human body: the brain. “I have always treated my job as an art and passion, and that’s why I love coming to work every day, if you really enjoy what you do, then you really want to put everything you have into it and you will always want to excel in every possible way but it has to be a passion.” In addition to a desire to heal, he is driven to perfect new and unusual brain surgeries to ensure the least possible harm and the greatest possible benefits to patients. To achieve this goal, he uses a wide range of methods to refine and improve the effectiveness of known surgical techniques.
In all recent years (2013-2021), he was named one of Indianapolis Monthly's Top Doctors for Neurological Surgery.
Please see Dr. Cohen's Executive Resume.