hˈɪpɑː kˈʌvɚd ˈɛntᵻɾiz sˈʌtʃ ɐz pɹəvˈaɪdɚz kəmplˈiːɾɪŋ ᵻlɛktɹˈɑːnɪk tɹænsˈækʃənz, hˈɛlθkɛɹ klˈɪɹɪŋhˌaʊzᵻz, ænd lˈɑːɹdʒ hˈɛlθ plˈænz wɜː ɹᵻkwˈaɪɚd baɪ ɹˌɛɡjʊlˈeɪʃən tə jˈuːz ˈoʊnli ðɪ ˌɛnpˌiːˈaɪ tʊ aɪdˈɛntᵻfˌaɪ kˈʌvɚd hˈɛlθkɛɹ pɹəvˈaɪdɚz baɪ mˈeɪ twˈɛnti θɹˈiː, tˈuː θˈaʊzənd sˈɛvən.
HIPAA–covered entities such as providers completing electronic transactions, healthcare clearinghouses, and large health plans were required by regulation to use only the NPI to identify covered healthcare providers by May 23, 2007.