DeYoung has been credited as the writer of more Styx songs than any other Styx member. He was also the band's most successful writer, penning 7 of the band's 8 Billboard Top 10 singles as well as a solo top 10 single.
national provider identifier (NPI) A national provider identifier (NPI) is a unique ten-digit identification number required by HIPAA for all health care providers in the United States. Providers must use their NPI to identify themselves in all HIPAA transactions. Download this free guide.
The NPI Number is a unique 10-digit number issued by the CMS (Centers for Medicare & Medicaid Services) to healthcare providers in the United States. Since 1996, HIPAA requires the adoption of a standard unique number for healthcare providers. The NPI Final Rule, issued in Jan 2004, has adopted the NPI number as that standard for healthcare provider identification.