His areas of expertise include skull base tumors, thyroid cancer, and tongue cancer. Dr. Tassler is in-network for Coresource, POMCO, and Blue Cross/Blue Shield, as well as other insurance carriers. He is a graduate of Georgetown University School of Medicine and a graduate of Georgetown University Hospital's residency program. He has received the distinction of New York Rising Stars. Dr. Tassler is affiliated with Weill Cornell Medicine.