hey-fyi
i received letters in the mail from NYCOM and UMDNJ-SOM about an interview, i can't remember how long it took.  UMDNJ assigned me a specific date and time, while NYCOM asked me to call and schedule myself.  Western-COMP called me personally, only took them one week to reply after receiving my secondary.  they gave me dates and times to choose from.  
good luck!