Frequencies for first 10,000 rows of specialistrequiringreferral variable in plan2015 dataset : Specialist Requiring a Referral | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 8,351 83.51 83.51 007 Allergy and Immunology, 008 Cardi.. | 17 0.17 83.68 All | 8 0.08 83.76 All Specialists | 111 1.11 84.87 All but OBGYN | 15 0.15 85.02 All providers other than Family Pract.. | 117 1.17 86.19 All providers other than Family Pract.. | 21 0.21 86.40 All providers other than Family Pract.. | 92 0.92 87.32 All providers other than Family Pract.. | 191 1.91 89.23 All specialist providing services req.. | 22 0.22 89.45 All, except OBGYN and as state mandated | 420 4.20 93.65 Allergy & Immunology, Anesthesiology,.. | 71 0.71 94.36 Any member outside the members care s.. | 30 0.30 94.66 Any non-Primary Care Provider | 22 0.22 94.88 Cardiac Surgeon, Dermatologist, Genet.. | 171 1.71 96.59 Dermatologist, Pain Management/Anesth.. | 15 0.15 96.74 Genetics, Pain Management, Plastic Su.. | 12 0.12 96.86 Genetists, Pain Managemen, Plastic Su.. | 30 0.30 97.16 Referral required for all physicians .. | 28 0.28 97.44 The member's PCP will refer to all sp.. | 166 1.66 99.10 This requirement does not apply to Em.. | 90 0.90 100.00 ----------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 9 Dec 2017