Thanks so much for all your replies! I did mention Dana Farber to my friend, stating that this is where Sheryl Crow went etc., and she said that she had heard that they don't work with supporting the immune system there at all.
It's very important that we find a cancer center that works with building a person's immune system in order to be strong enough to fight the cancer.
If anyone knows of a really good oncologist in the Boston area please let me know. It would be great to get a recommendation rather than just drawing a name from a hat.
Thanks again, everyone!