Frequencies for first 10,000 rows of specr variable in namcs2014 dataset :

 Physician specialty - 14 |
                   groups |      Freq.     Percent        Cum.
--------------------------+-----------------------------------
  General/family practice |      1,837       18.37       18.37
        Internal medicine |      1,284       12.84       31.21
               Pediatrics |      1,271       12.71       43.92
          General surgery |        356        3.56       47.48
Obstetrics and gynecology |        597        5.97       53.45
       Orthopedic surgery |        576        5.76       59.21
  Cardiovascular diseases |        514        5.14       64.35
              Dermatology |        304        3.04       67.39
                  Urology |        198        1.98       69.37
               Psychiatry |        555        5.55       74.92
                Neurology |        187        1.87       76.79
            Ophthalmology |        398        3.98       80.77
           Otolaryngology |        129        1.29       82.06
        Other specialties |      1,794       17.94      100.00
--------------------------+-----------------------------------
                    Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017