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.
What is an NPI? An NPI is a unique 10-digit identification number used in standard health care transactions. It is issued to health care professionals and covered entities that transmit standard HIPAA electronic transactions (e.g., electronic claims and claim status inquiries).