They have Memory offices in both Rochester, MN and Jacksonville, FL. I see they also have something on their Scottsdale, AZ campus.
My husband had a knee replacement at the Jacksonville Mayo Clinic last June and Mayo is first class all the way. The most professional staff, the cleanest hospital/medical center I've ever been to. Impressive.
Last year, Mayo Clinic published an updated book that is excellent. It's called "Mayo Clinic on Alzheimer's Disease and other Dementias, Revised and Updated: A guide for people with dementia and those who care for them." You might also find that helpful.
I wish you the best. I don't think you will be disappointed with Mayo. They do all the testing there, or you can do it where you live and get the results via a video call. I've found it important to know at what stage my brain is in (MRI and Pet Scan) and how big of a risk I have going forward. (blood test) Plus, they taught me what I can do every day to stay the healthiest I can so it doesn't get worse. There are no treatments once the disease progresses, but there are things we can do NOW to have more healthy years. It truly is worth the investment. My insurance paid for all the testing and doctor appts. All it cost me was a couple of nights in a hotel and gas to get there. Best of luck.
If you're closer to Cleveland, OH or Las Vegas, The Cleveland Clinic also have excellent Memory Disorder clinics that can give you the same type of care. I just can't emphasize how helpful it could be to both of you.
Or, google or ask AI for a list of the top doctors and hospital systems for Alz. care in your area, if that works better. I found out this week that Duke is now using FDA approved "infusion" treatments which could delay the progression of the disease. So, there's a lot going on - jump in and see if you can get your wife some help before it gets worse. God bless you both.