I think you would be ok to count them, but it might be beneficial to keep them separate in case someone asks. They might want to see that you've done shadowing separate from your job as an assistant. I'm sure you are learning tons as an assistant, but that is just how your doctor(s) does things. You would benefit greatly from doing shadowing separate from your assisting to see different perspectives and ways of doing things.
I think you would be ok to count them, but it might be beneficial to keep them separate in case someone asks. They might want to see that you've done shadowing separate from your job as an assistant. I'm sure you are learning tons as an assistant, but that is just how your doctor(s) does things. You would benefit greatly from doing shadowing separate from your assisting to see different perspectives and ways of doing things.