Perhaps I should have been more clear in my previous response I am not an AEGD fellow at Columbia, I am undergrad student there. But because they are on the same floor with us i know many of them and have a general idea of what is going on there. I think it's about as competitive as any other AEGD. But in terms of exposure to specialties I highly doubt there is any at all. It's a programs that is heavily tailored towards general practice and assumes the graduates are going straight into private practice. I do know that there are members of the program that have applied to peds and ortho however. They have classes at 8 am in the morning and then mostly in clinic seeing patients.
If you are looking for a program that rotates through consider Columbia GPR. But then you'll be seeing much more medically compromised patients and be on call so make sure you like that. That's all I know about the program. Good luck