Can Yuyao social security be used in Yinzhou District?

Of course. Yuyao is a county-level city under the jurisdiction of Ningbo City, Zhejiang Province, and social security cards can be used within the scope of Ningbo City (Yinzhou District belongs to Ningbo City, Zhejiang Province). Since the establishment of medical insurance, the city has been the overall planning unit, and now the whole province is unified, so now everything in the city can be used, including hospitalization, and medical insurance cards can be used in most retail pharmacies, so medical insurance can be used in different districts of the city since its establishment.