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

entity:
  1.  1, Individual
  2.  2, Organization

  obs:     4,656,134                          
 vars:             2                          21 Nov 2015 10:19
 size:    51,217,474                          (_dta has notes)
-------------------------------------------------------------------------------
              storage   display    value
variable name   type    format     label      variable label
-------------------------------------------------------------------------------
npi             str10   %10s                  National Provider Identifier
                                                (NPI)
entity          byte    %12.0g     entity   * Entity Type Code
                                            * indicated variables have notes
-------------------------------------------------------------------------------
Sorted by:  npi
entity:
           1 Individual 
           2 Organization