_dta:
  1.  by Jean Roth , jroth@nber.org , 21 Nov 2015

  obs:     4,656,134                          
 vars:             2                          21 Nov 2015 10:41
 size:   302,648,710                          (_dta has notes)
-------------------------------------------------------------------------------
              storage   display    value
variable name   type    format     label      variable label
-------------------------------------------------------------------------------
npi             str10   %10s                  National Provider Identifier
                                                (NPI)
pmailline1      str55   %55s                  Provider First Line Business
                                                Mailing Address
-------------------------------------------------------------------------------
Sorted by:  npi