Donald Sonn has been a practicing urologic surgeon since 1997, the year he completed service as Chief Resident of the Long Island Jewish Medical Center. An experienced and accomplished medical professional, Sonn received his Doctor of Medicine degree from the Yeshiva University Albert Einstein College of Medicine in 1991, and completed two residencies at the Long Island Jewish Medical Center between 1991 and 1996. 

https://en.wikipedia.org/wiki/User:Dr_Donald_Sonn