SUBJECT: Resolving eMedNY Attending Provider National Provider Identifier (NPI) Affiliation Errors SSHSP Medicaid billing providers (school districts and counties) were instructed to affiliate each attending provider’s NPI in eMedNY in Medicaid Alert# 11- 03, dated September 12, 2011 and Medicaid Alert #12-02, dated March 1, 2012.