I applied 5/4/20. Did not submit a GMAT, but they were somehow able to pull my initial practice test I took in 2018 without me submitting a score to them in the system with my 5/4 application (I had honestly forgotten that I sent the scores there back in 2018, and was assuming my application would be submitted without a GMAT score). Interviewed on 5/13. Received a phone call today, but missed the call due to leading a meeting (womp womp). Called back once the meeting ended at 4:00 CST and left a voicemail for the caller.
They voicemail they left me said it was to discuss my application status. Call came from a 312 number (Google of the name of the caller pulled up someone from Northwestern per LinkedIn). I have my fingers crossed for some good news, but remaining practical that it could be to request more documentation for my application.
Edit 1: clarified what I meant about GMAT above. I took a test for my own practice in 2018, and must have added Kellogg as a school to receive scores.
Edit 2: I applied for the PT Evening program.