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.
NPIs are a unique, 10-digit, sequentially assigned national identification number that are mandated by HIPAA to be used by health care providers, health plans, and health care clearinghouses in all administrative and financial HIPAA transactions. NPIs are routinely assigned only to medical providers.