Frequencies for npi_medicarexw dataset : by Jean Roth , jroth@nber.org , 19 Apr 2019 Frequencies for npi variable in npi_medicarexw dataset : no observations Frequencies for seq variable in npi_medicarexw dataset : no observations Frequencies for othpid variable in npi_medicarexw dataset : no observations Frequencies for othpidty variable in npi_medicarexw dataset : no observations Frequencies for othpidst variable in npi_medicarexw dataset : no observations Frequencies for othpidiss variable in npi_medicarexw dataset : no observations by Jean Roth , jroth@nber.org , 19 Apr 2019