Frequencies for companyname variable in pdp2017 dataset : Company Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 1 0.10 0.10 ARKANSAS BLUE CROSS AND BLUE SHIELD | 2 0.19 0.29 Aetna Medicare | 51 4.95 5.24 Anthem Blue Cross Life and Health Ins.. | 3 0.29 5.53 Anthem Blue Cross and Blue Shield | 32 3.11 8.64 Asuris Northwest Health | 4 0.39 9.03 Avalon Insurance Company | 4 0.39 9.42 Blue Cross & Blue Shield of Rhode Isl.. | 2 0.19 9.61 Blue Cross Blue Shield of Georgia | 3 0.29 9.90 Blue Cross Blue Shield of Michigan | 2 0.19 10.10 Blue Cross Blue Shield of North Dakota | 2 0.19 10.29 Blue Cross Blue Shield of South Carol.. | 2 0.19 10.49 Blue Cross Blue Shield of Wyoming | 2 0.19 10.68 Blue Cross and Blue Shield of Alabama | 2 0.19 10.87 Blue Cross and Blue Shield of Arizona | 2 0.19 11.07 Blue Cross and Blue Shield of Massach.. | 2 0.19 11.26 Blue Cross and Blue Shield of Minnesota | 2 0.19 11.46 Blue Cross and Blue Shield of Montana | 2 0.19 11.65 Blue Cross and Blue Shield of Nebraska | 2 0.19 11.84 Blue Cross and Blue Shield of North C.. | 2 0.19 12.04 Blue Cross and Blue Shield of Vermont | 2 0.19 12.23 Blue MedicareRx | 3 0.29 12.52 Blue Shield of California | 2 0.19 12.72 EMI Health | 4 0.39 13.11 EnvisionRx Plus | 53 5.15 18.25 Express Scripts Medicare | 104 10.10 28.35 Farm Bureau Health Plans | 2 0.19 28.54 First Health Part D | 102 9.90 38.45 Florida Blue | 2 0.19 38.64 HISC - Blue Cross Blue Shield of Illi.. | 3 0.29 38.93 HISC - Blue Cross Blue Shield of New .. | 3 0.29 39.22 HISC - Blue Cross Blue Shield of Okla.. | 3 0.29 39.51 HISC - Blue Cross Blue Shield of Texas | 3 0.29 39.81 Highmark Health Insurance Company | 4 0.39 40.19 Horizon Blue Cross Blue Shield of New.. | 2 0.19 40.39 Humana Insurance Company | 150 14.56 54.95 Humana Insurance Company of New York | 3 0.29 55.24 Humana Insurance of Puerto Rico, Inc. | 2 0.19 55.44 MII Life, Inc. | 1 0.10 55.53 Magellan Rx Medicare | 33 3.20 58.74 Members Health Insurance Company | 2 0.19 58.93 Regence BlueCross BlueShield of Utah | 2 0.19 59.13 Regence BlueShield of Idaho | 2 0.19 59.32 Senior Care Plus | 1 0.10 59.42 SilverScript | 101 9.81 69.22 UTIC Insurance Company | 2 0.19 69.42 UnitedHealthcare | 207 20.10 89.51 WPS Health Insurance | 2 0.19 89.71 WellCare | 102 9.90 99.61 Wellmark Blue Cross Blue Shield of So.. | 2 0.19 99.81 Wellmark Blue Cross and Blue Shield o.. | 2 0.19 100.00 ----------------------------------------+----------------------------------- Total | 1,030 100.00 by Jean Roth , jroth@nber.org , 6 Dec 2016