Am I too old for hormone treatment from a board certified physician and not in a hormone mill?

No you are not. I treat men and women your age for hormone management. There is no need for you to go to a hormone mill.
Hormones. your body makes hormones all your life. The levels of many go down as you age. It helps to have the levels appropriate for your age. People focus on the sex hormones, but actually thyroid levels can change your whole life. Do not go to a hormone mill especially one that supplies the medications. See your FP or an endocrinologist. What are you trying to fix. Your meds may be the problem.
Not too old. You are not too old, but make sure the doctor you are seeing explains the risks and benefits to you of hormone replacement.