I met with Dr Gerardo Zullo, as a result of a questionable EKG, during a HSS pre-surgical screening! Dr Zullo was sympathetic yet thorough in his execution of various tools to give me and Dr Steven Hass the “piece of mind” that we may move forward with my right knee replacement; pending the results of the halter, 24 hour monitor I am wearing tonight!!! An EKG and ultra sound of my heart were also performed! I felt very comfortable and impressed with the skills of Dr Gerardo Zullo and his assistant, Marta!