B..
Your pediatrician would have to order these. Many pediatricians won't order single vaccines, but some will. Some do single vaccinations, from the beginning. Again, many don't. You can definitely get the MMR vaccination separated. I don't know which manufacturer, but our pediatrician does them separately. I do not vaccinate my son, but we did a lot of research into this. You will have to find a pediatrician who does single vaccinations, you can't order them yourself.
P.S.
They don't put that on their website, because single vaccinations cost more money! AND, only doctor's can order them. The website information is not for doctors, but patients. Patients don't need to order vaccinations, so that information doesn't have to be there. I am surprised your Dr. would even tell you to find them yourself, because you can't GET them yourself...he has to. Is he giving you the run around, so he doesn't have to deal with it himself??