It's been a long time since I've used with-grain food for mine. I know that since I stopped using it, companies have had issues, been sold, etc.
This is where I would look, and when I went to get you the link, I found a couple of interesting looking ones.
I'm fortunate that my dogs have done well on grain-free for several years now.
I am not sure that I'd hold my breath on meeting the new vet right away... Do you know anything about him?
Dh is changing his primary care physician. It's a mess which has been made more difficult by sheltering-in-place. Actually, that's the reason...long story. So, while he's met my Dr. before, who agreed to take him on as a patient, I'm not sure how it will work with him needing to see someone every 3 months. We're going to find out. So, vets, Drs., etc...odd times.
Let us know if you choose a new food!
Love All Life, Thank You For Posting! :)