First question: if she has good control, why do they want to start her on insulin? If her A1C is too high, she stopped takingthe meds... Anyway
He has not gotten the best reviews here, but I use Northern Virginia Endocrinolgists in Fairfax, and see Dr. Ross. They are rated well, and I only use my endo for pump and cgm supplies. He is a bit gruff, but his advice is generally very good and I called yesterday for an appointment and got one for Monday.
There are other docs in the practice, but I choose him based on the reviews. I would call and ask about the beta cell protection angle.
George Washintion hospital has a fantastic endo department and is easy access from Falls Church. They do tons of research and are always up to date. My wonderful endo left the area, and I no longer needed that kind of care, but they were great, but hard to get an appointment... I am sure they would love to see an LADA whose goal is the protect beta cells. It has research written all over it!