Kathleen, you have posted about this before and I have never replied because I don't want to spread negative vibes (having been around the internet a loooong time I know how quickly a group can go to hell when a flame war erupts). But now, since you ask ...
... it has always enraged me that your RE feels entitled to play God in this way. My clinic has a clearly defined age limit and set of health-related tests that need to be taken, and I think that's how it should be. One doctor's subjective opinion of whether you are worthy to have a child or not? Lets not even go there.
My husband is 54 and not in the greatest health - he is quite overweight, has Type II diabetes and the metabolic syndrome that goes with it. However, we became friendly with a group of about a dozen other new parents, mostly in their mid-30s, and over the past 3 years, out of that group, one father had an emergency quadruple bypass, another had 2 arterial stents put in and is still in and out of the hospital with heart spasms, whereas my husband has had nothing worse than some seasonal allergies bother him. Which one of them should have been judged not healthy enough to be a father? (Also, let me be quick to add that since having our first daughter my husband has lost a lot of weight and is taking better care of himself than ever before, and I'm sure he's not the only older parent to actually improve himself with age).
If I were you I would not go to war with this doctor, but would quietly investigate all your other options in terms of having another clinic or doctor do the transfer for you, so you can just walk away from him and move on without him if it comes to that.
Now, on a lighter note - I took the new baby to the pediatrician for her 1 month checkup, and happened to see the older gentleman who is the original partner in this practice. He noticed that the baby had some prickly heat and asked me what soap I was using for her bath. "Burt's Bees" I replied. "Whaaaat?" he said, having clearly never heard of this. "Burt's Bees!" "Whaaaaaaaaaaat?" "Its an all-natural line of personal care products" I explain. "Oh" he says, then "Why don't you try Ponds? It has cold cream in it!" Sheesh, I think - which is more disturbing, the fact that he is old enough to think the answer is "cold cream" or the fact that I am old enough to even know what he is talking about?!?!?!?!