Hi cannotgiveup, unfortunately i too had a similar experience with Dr Sacks. My FS had referred me to him to get the NK tests done as i had had a number of m/c's and i was under the impression that Dr Sacks was an expert in this area and the guru on Nk cells....well we had 2 appointments with him (made the special trip to Sydney over 250km away each time), he did my biospy and a few weeks later sent a letter with the results. I had a few questions and i tried to see if i could arrange a phone consultation (offered to pay) for just 10 mins to talk over the results....he refused and said that i had to decide if i wanted to see him through his clinic to do ivf or stick with my current clinic closer to home. I was very dissapointed ...and came to the conclusion that he offers little patient care and maybe he didn't know the answers to my questions!! I was referred to him with specialist needs and he failed to offer the help i had paid for him.
I have been in this IVF game for 4 years now and seen a number of FS's at various clinics....unfortunately most of them are business men too and tend to see dollar signs above your head, there is a lot of competition out there between the clinics.
Anyway, that's the cynic in me!!!
After all that i'm still with my original FS at the same clinic. My advice, stick with where you are happy & comfortable with. Your current FS should be able to interpret the Nk results and prescribe prednisone if needed.
Wishing you all the best