My doctor is very conservative. She started me on a low dose, then checked my liver and kidney function after two weeks. The protocol she follows is that any time there is an increase in spiro, she checks kidney function after two weeks. I have had two increases in my spiro dose, so twice, I've had two two-week followups. Going a year without followup seems excessive.
Same with E. My first prescription was for one month, then a checkup. Then three months and a checkup for levels, for a couple of cycles. Finally, now, after nearly a year, my dose is steady, and she has given me a six-month prescription. She is not going to consider letting me go unchecked for a year unless everything is stable over shorter periods of time.
I don't know what is normal in your area. If you attend a support group, you might want to check with other members to see how their doctors manage their treatment.