During the first five and a half years with graves, I did not see an endo at all. My primary doctor diagnosed me and put me on anti-thyroid meds, beta blockers and really monitored me until I was somewhat settled down. He immediately referred me to an optho when my eyes started swelling and kept track of everything that was going on and kept me going to the right place and the right time. He would call me after I’d seen another doctor to see how I felt. Now I have a new primary doctor, an endo, and an eye doctor. Sometimes I don’t know who is in charge of what. If your primary doc can do the blood work and is familiar with graves, I would stick with him.