I know a little of what you're going through. I have a new pdoc since my old one of 10 years is retiring. She is still working part-time, I think until she gets most her of patients set up with new pdocs. She did me a favor, getting me in early with my new pdoc as I saw him in weeks, not 6 months (his typical waiting list). My new pdoc works at the same clinic; it is small, 3 pdocs, 1 therapist. I see her come out to call patients, so she has seen me too, depending on where I'm sitting in the waiting room. Sometimes, I feel like I should have a last word with her, thank her for giving me the right diagnosis and being such a good doctor and wishing her a good retirement. But then, I'm like, I don't know, that could be interpreted as weird and creepyish. But T's you see weekly and for longer time periods, so it is more personal by default, I think. With my old pdoc, depending on how I was doing at the time it might be a week; 3 weeks, 6 weeks, once I think even 3 months. The new pdoc of course discussed me with her as I'd signed a consent, and he told me he talked to her about me. I regret missing my final appointment with her (that was during my hospital surgery stay).

The new pdoc is good, better than most out there, I think. But my old pdoc was absolutely fantastic. He definitely does not match up to her. He has a more brisk, efficient manner about him. I feel he's a good doctor, but he processes what you tell him practically instantly and there is not much small talk. If I tell him about specific personal incidents, he does at least listen and does ask me at the end of each session if I have any questions or anything else to discuss, so at least I have a moment if there is something else I forgot earlier, but he's so fast with everything, maybe because he types his notes; old pdoc wrote hers out by hand, I saw this when I got my medical records from the clinic, the new pdoc did include a lot of information on the sheets from my visits to him at the clinic, likely the reason he seems to take a bit longer between calling out patients than my old pdoc did.

I think when you've actually found an outstanding doctor or T, it is harder to let go, and you tend to measure the new one against the really fantastic past doctor or T. But instead of measuring a new doctor or T to a really fantastic old one, I have come to realize you need to measure them up against all the bad ones you've had or could have gotten in with. I am hopeful as the new T I'm with already feels like a better fit than past T's, but it's too early to really assess that, and I have never had a T I really clicked with.

A quick, brief email would probably be OK since the T gave you an email address and did follow your blog. Probably something along the lines of I want to thank you for being such a good therapist, hope the move has gone well & I'm doing OK, not go into not great, old T not measuring up, slower progress, etc. Because you've really moved all your therapy care to a new T. If all the old T's patients did that, it might be frustrating to her, but IDK her personally, how long did you see this T? That is something to consider as well. If it was over the course of several or many years, it's more understandable than a T you saw for 6 months or something.