The Center Wide ID (or "CWID", pronounced "seaweed") is a unique identifier consisting of a seven character username assigned to all faculty, staff and students. This ID is used to log into nearly all WCMC and NewYork-Presbyterian computing systems. It also constitutes the first section of your email address (CWID@med.cornell.edu).

CWIDs consist of three initials of the user's name (first-middle-last, or for those with no middle name, two letters from the first name and one from the last) and a four digit numeric identifier. Only one CWID is assigned per person - it never expires and does not change, even if you leave the institution or transition between jobs. The same CWID is used at both Weill Cornell Medical College and NewYork-Presbyterian Hospital.

(Faculty or staff who began employment with the institution prior to 1998 may have CWIDs that do not adhere to the current convention.)