S1 registration

Hola, I have been in Spain for 17 years and both my husband and I are on the Spanish health system. I was on my husbands health till I retired in my own right. I never received the 121 in my name, my husband has 2 copies in his name. I have received my S1 now, the problem is that totana my inss office in on phase 1. Can I register it at another office. Thank you.