You are extremely lucky to find an MD who will prescribe testosterone at that level. Mine was at 320 and the MD still refused to prescribe HRT for me. The rules on this vary. What you are giving is a serum testosterone level. Make certain that you also have your Free Floating recorded in testing as well.
I am in the process of lining up a different MD on this very issue myfself.
Testosterone replacement is something I strongly believe in. The problems come with which testosterone ester you are given. Most MD's use Depo (ester is Cypionate) for this and I personally do not like Depo at all. Depo is long acting and requires fewer injections. This is why they do it that way, but it is recognized by the Pituitary axis far more than are injections of DHT which is what you in fact actually need. DHT has to be injected either daily or every other day unless you use a transdermal preparation.
Human Chorionic Gonadotropin is the standard treatment to prevent testicular atrophy and should be done at regular intervals. If the MD uses DHT (Masteron or equivalent) instead of Depo which is (Testosterone Cypionate) then the need for this is vastly reduced because the pituitary axis or regulation mechanism does not recognize elevated DHT anywhere near as easily as it recognizes regular testosterone which must then be converted to DHT. Also a small amount is far more effective because the hormone is already active and does not require breakdown by 5-alpha-reductase for conversion to DHT by your body for use.
All in all you are a lucky guy to have an MD who jumps on this at all. Most could care less on this issue and will have you in a C cup bra before they will prescrible male HRT.