Summary statistics for npi dataset : by Jean Roth , jroth@nber.org , 19 Apr 2019 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- npi | 0 entity | 5,800,357 1.228899 .4201242 1 2 replacemen~i | 0 ein | 0 porgname | 0 -------------+--------------------------------------------------------- plname | 0 pfname | 0 pmname | 0 pnameprefix | 0 pnamesuffix | 0 -------------+--------------------------------------------------------- pcredential | 0 porgnameoth | 0 porgnameot~e | 0 plnameoth | 0 pfnameoth | 0 -------------+--------------------------------------------------------- pmnameoth | 0 pnameprefi~h | 0 pnamesuffi~h | 0 pcredentia~h | 0 plnamecode | 287,335 1.853666 1.501149 1 5 -------------+--------------------------------------------------------- pmailline1 | 0 pmailline2 | 0 pmailcityn~e | 0 pmailstate~e | 0 pmailzip | 0 -------------+--------------------------------------------------------- pmailcountry | 0 pmailtel | 0 pmailfax | 0 plocline1 | 0 plocline2 | 0 -------------+--------------------------------------------------------- ploccityname | 0 plocstaten~e | 0 ploczip | 0 ploccountry | 0 ploctel | 0 -------------+--------------------------------------------------------- plocfax | 0 penumdatestr | 0 penumdate | 5,800,357 18635.79 1600.775 16579 21646 lastupdate~r | 0 lastupdate | 5,800,357 19441.78 1476.497 17355 21647 -------------+--------------------------------------------------------- npideactre~n | 0 npideactda~r | 0 npideactdate | 150,799 19738.86 1394.431 16579 21647 npireactda~r | 0 npireactdate | 7,497 18589.38 1854.161 16580 21644 -------------+--------------------------------------------------------- pgender | 0 aolname | 0 aofname | 0 aomname | 0 aotitle | 0 -------------+--------------------------------------------------------- aotelnum | 0 ptaxcode1 | 0 plicnum1 | 0 plicstate1 | 0 pprimtax1 | 0 -------------+--------------------------------------------------------- ptaxcode2 | 0 plicnum2 | 0 plicstate2 | 0 pprimtax2 | 0 ptaxcode3 | 0 -------------+--------------------------------------------------------- plicnum3 | 0 plicstate3 | 0 pprimtax3 | 0 ptaxcode4 | 0 plicnum4 | 0 -------------+--------------------------------------------------------- plicstate4 | 0 pprimtax4 | 0 ptaxcode5 | 0 plicnum5 | 0 plicstate5 | 0 -------------+--------------------------------------------------------- pprimtax5 | 0 ptaxcode6 | 0 plicnum6 | 0 plicstate6 | 0 pprimtax6 | 0 -------------+--------------------------------------------------------- ptaxcode7 | 0 plicnum7 | 0 plicstate7 | 0 pprimtax7 | 0 ptaxcode8 | 0 -------------+--------------------------------------------------------- plicnum8 | 0 plicstate8 | 0 pprimtax8 | 0 ptaxcode9 | 0 plicnum9 | 0 -------------+--------------------------------------------------------- plicstate9 | 0 pprimtax9 | 0 ptaxcode10 | 0 plicnum10 | 0 plicstate10 | 0 -------------+--------------------------------------------------------- pprimtax10 | 0 ptaxcode11 | 0 plicnum11 | 0 plicstate11 | 0 pprimtax11 | 0 -------------+--------------------------------------------------------- ptaxcode12 | 0 plicnum12 | 0 plicstate12 | 0 pprimtax12 | 0 ptaxcode13 | 0 -------------+--------------------------------------------------------- plicnum13 | 0 plicstate13 | 0 pprimtax13 | 0 ptaxcode14 | 0 plicnum14 | 0 -------------+--------------------------------------------------------- plicstate14 | 0 pprimtax14 | 0 ptaxcode15 | 0 plicnum15 | 0 plicstate15 | 0 -------------+--------------------------------------------------------- pprimtax15 | 0 othpid1 | 0 othpidty1 | 1,437,390 3.440646 1.950855 1 5 othpidst1 | 0 othpidiss1 | 0 -------------+--------------------------------------------------------- othpid2 | 0 othpidty2 | 518,940 2.694685 1.97656 1 5 othpidst2 | 0 othpidiss2 | 0 othpid3 | 0 -------------+--------------------------------------------------------- othpidty3 | 244,566 2.385687 1.903322 1 5 othpidst3 | 0 othpidiss3 | 0 othpid4 | 0 othpidty4 | 136,978 2.163282 1.81657 1 5 -------------+--------------------------------------------------------- othpidst4 | 0 othpidiss4 | 0 othpid5 | 0 othpidty5 | 88,974 2.029514 1.748769 1 5 othpidst5 | 0 -------------+--------------------------------------------------------- othpidiss5 | 0 othpid6 | 0 othpidty6 | 62,076 1.945551 1.699466 1 5 othpidst6 | 0 othpidiss6 | 0 -------------+--------------------------------------------------------- othpid7 | 0 othpidty7 | 44,824 1.909067 1.676284 1 5 othpidst7 | 0 othpidiss7 | 0 othpid8 | 0 -------------+--------------------------------------------------------- othpidty8 | 32,935 1.870199 1.650343 1 5 othpidst8 | 0 othpidiss8 | 0 othpid9 | 0 othpidty9 | 24,329 1.870073 1.650266 1 5 -------------+--------------------------------------------------------- othpidst9 | 0 othpidiss9 | 0 othpid10 | 0 othpidty10 | 18,012 1.859205 1.642783 1 5 othpidst10 | 0 -------------+--------------------------------------------------------- othpidiss10 | 0 othpid11 | 0 othpidty11 | 13,638 1.868456 1.649184 1 5 othpidst11 | 0 othpidiss11 | 0 -------------+--------------------------------------------------------- othpid12 | 0 othpidty12 | 10,420 1.887524 1.662126 1 5 othpidst12 | 0 othpidiss12 | 0 othpid13 | 0 -------------+--------------------------------------------------------- othpidty13 | 8,120 1.863054 1.645505 1 5 othpidst13 | 0 othpidiss13 | 0 othpid14 | 0 othpidty14 | 6,206 1.90622 1.674544 1 5 -------------+--------------------------------------------------------- othpidst14 | 0 othpidiss14 | 0 othpid15 | 0 othpidty15 | 4,761 2.00147 1.733081 1 5 othpidst15 | 0 -------------+--------------------------------------------------------- othpidiss15 | 0 othpid16 | 0 othpidty16 | 3,600 1.995556 1.729717 1 5 othpidst16 | 0 othpidiss16 | 0 -------------+--------------------------------------------------------- othpid17 | 0 othpidty17 | 2,692 2.057949 1.764567 1 5 othpidst17 | 0 othpidiss17 | 0 othpid18 | 0 -------------+--------------------------------------------------------- othpidty18 | 1,861 2.128426 1.800583 1 5 othpidst18 | 0 othpidiss18 | 0 othpid19 | 0 othpidty19 | 1,039 2.509143 1.939763 1 5 -------------+--------------------------------------------------------- othpidst19 | 0 othpidiss19 | 0 othpid20 | 0 othpidty20 | 720 2.688889 1.977028 1 5 othpidst20 | 0 -------------+--------------------------------------------------------- othpidiss20 | 0 othpid21 | 0 othpidty21 | 538 2.776952 1.989373 1 5 othpidst21 | 0 othpidiss21 | 0 -------------+--------------------------------------------------------- othpid22 | 0 othpidty22 | 458 2.895197 1.999436 1 5 othpidst22 | 0 othpidiss22 | 0 othpid23 | 0 -------------+--------------------------------------------------------- othpidty23 | 392 2.826531 1.995009 1 5 othpidst23 | 0 othpidiss23 | 0 othpid24 | 0 othpidty24 | 333 2.933934 2.001917 1 5 -------------+--------------------------------------------------------- othpidst24 | 0 othpidiss24 | 0 othpid25 | 0 othpidty25 | 289 3.076125 2.002017 1 5 othpidst25 | 0 -------------+--------------------------------------------------------- othpidiss25 | 0 othpid26 | 0 othpidty26 | 241 3.190871 1.995015 1 5 othpidst26 | 0 othpidiss26 | 0 -------------+--------------------------------------------------------- othpid27 | 0 othpidty27 | 216 3.148148 1.999138 1 5 othpidst27 | 0 othpidiss27 | 0 othpid28 | 0 -------------+--------------------------------------------------------- othpidty28 | 183 3.054645 2.004738 1 5 othpidst28 | 0 othpidiss28 | 0 othpid29 | 0 othpidty29 | 169 3.153846 2 1 5 -------------+--------------------------------------------------------- othpidst29 | 0 othpidiss29 | 0 othpid30 | 0 othpidty30 | 157 3.216561 1.994603 1 5 othpidst30 | 0 -------------+--------------------------------------------------------- othpidiss30 | 0 othpid31 | 0 othpidty31 | 139 3.244604 1.992165 1 5 othpidst31 | 0 othpidiss31 | 0 -------------+--------------------------------------------------------- othpid32 | 0 othpidty32 | 128 3.1875 1.999016 1 5 othpidst32 | 0 othpidiss32 | 0 othpid33 | 0 -------------+--------------------------------------------------------- othpidty33 | 117 3.324786 1.98194 1 5 othpidst33 | 0 othpidiss33 | 0 othpid34 | 0 othpidty34 | 107 3.205607 1.998765 1 5 -------------+--------------------------------------------------------- othpidst34 | 0 othpidiss34 | 0 othpid35 | 0 othpidty35 | 93 3.150538 2.005136 1 5 othpidst35 | 0 -------------+--------------------------------------------------------- othpidiss35 | 0 othpid36 | 0 othpidty36 | 87 3.16092 2.005072 1 5 othpidst36 | 0 othpidiss36 | 0 -------------+--------------------------------------------------------- othpid37 | 0 othpidty37 | 79 3.379747 1.976164 1 5 othpidst37 | 0 othpidiss37 | 0 othpid38 | 0 -------------+--------------------------------------------------------- othpidty38 | 65 3.338462 1.986493 1 5 othpidst38 | 0 othpidiss38 | 0 othpid39 | 0 othpidty39 | 58 3.068966 2.016268 1 5 -------------+--------------------------------------------------------- othpidst39 | 0 othpidiss39 | 0 othpid40 | 0 othpidty40 | 54 3.074074 2.017395 1 5 othpidst40 | 0 -------------+--------------------------------------------------------- othpidiss40 | 0 othpid41 | 0 othpidty41 | 49 3.285714 2 1 5 othpidst41 | 0 othpidiss41 | 0 -------------+--------------------------------------------------------- othpid42 | 0 othpidty42 | 43 3.325581 1.996675 1 5 othpidst42 | 0 othpidiss42 | 0 othpid43 | 0 -------------+--------------------------------------------------------- othpidty43 | 40 3.1 2.022945 1 5 othpidst43 | 0 othpidiss43 | 0 othpid44 | 0 othpidty44 | 36 2.777778 2.015811 1 5 -------------+--------------------------------------------------------- othpidst44 | 0 othpidiss44 | 0 othpid45 | 0 othpidty45 | 36 3 2.02837 1 5 othpidst45 | 0 -------------+--------------------------------------------------------- othpidiss45 | 0 othpid46 | 0 othpidty46 | 32 3 2.032002 1 5 othpidst46 | 0 othpidiss46 | 0 -------------+--------------------------------------------------------- othpid47 | 0 othpidty47 | 25 2.76 2.026491 1 5 othpidst47 | 0 othpidiss47 | 0 othpid48 | 0 -------------+--------------------------------------------------------- othpidty48 | 17 2.411765 1.970369 1 5 othpidst48 | 0 othpidiss48 | 0 othpid49 | 0 othpidty49 | 13 2.230769 1.921538 1 5 -------------+--------------------------------------------------------- othpidst49 | 0 othpidiss49 | 0 othpid50 | 0 othpidty50 | 10 1.4 1.264911 1 5 othpidst50 | 0 -------------+--------------------------------------------------------- othpidiss50 | 0 soleprop | 0 orgsubpart | 0 parent_or~bn | 0 parent_or~in | 0 -------------+--------------------------------------------------------- aoname_pre~x | 0 aoname_suf~x | 0 aocredential | 0 ptaxgroup1 | 0 ptaxgroup2 | 0 -------------+--------------------------------------------------------- ptaxgroup3 | 0 ptaxgroup4 | 0 ptaxgroup5 | 0 ptaxgroup6 | 0 ptaxgroup7 | 0 -------------+--------------------------------------------------------- ptaxgroup8 | 0 ptaxgroup9 | 0 ptaxgroup10 | 0 ptaxgroup11 | 0 ptaxgroup12 | 0 -------------+--------------------------------------------------------- ptaxgroup13 | 0 ptaxgroup14 | 0 ptaxgroup15 | 0 by Jean Roth , jroth@nber.org , 19 Apr 2019