Frequencies for companyname variable in pdp2018 dataset : Company Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 1 0.08 0.08 Aetna Medicare | 79 6.66 6.75 Anthem Blue Cross Life and Health Ins.. | 3 0.25 7.00 Anthem Blue Cross and Blue Shield | 32 2.70 9.70 Asuris Northwest Health | 4 0.34 10.03 Avalon Insurance Company | 4 0.34 10.37 Blue Cross & Blue Shield of Rhode Isl.. | 2 0.17 10.54 Blue Cross Blue Shield of Georgia | 3 0.25 10.79 Blue Cross Blue Shield of Michigan | 2 0.17 10.96 Blue Cross Blue Shield of North Dakota | 2 0.17 11.13 Blue Cross Blue Shield of South Carol.. | 2 0.17 11.30 Blue Cross Blue Shield of Wyoming | 2 0.17 11.47 Blue Cross and Blue Shield of Alabama | 2 0.17 11.64 Blue Cross and Blue Shield of Arizona | 2 0.17 11.80 Blue Cross and Blue Shield of Massach.. | 2 0.17 11.97 Blue Cross and Blue Shield of Minnesota | 2 0.17 12.14 Blue Cross and Blue Shield of Montana | 2 0.17 12.31 Blue Cross and Blue Shield of Nebraska | 2 0.17 12.48 Blue Cross and Blue Shield of North C.. | 2 0.17 12.65 Blue Cross and Blue Shield of Vermont | 2 0.17 12.82 Blue MedicareRx | 3 0.25 13.07 Blue Shield of California | 2 0.17 13.24 Cigna-HealthSpring Rx | 102 8.60 21.84 EMI Health | 4 0.34 22.18 EnvisionRx Plus | 53 4.47 26.64 Express Scripts Medicare | 155 13.07 39.71 Farm Bureau Health Plans | 2 0.17 39.88 First Health Part D | 74 6.24 46.12 Florida Blue | 2 0.17 46.29 HISC - Blue Cross Blue Shield of Illi.. | 3 0.25 46.54 HISC - Blue Cross Blue Shield of New .. | 3 0.25 46.80 HISC - Blue Cross Blue Shield of Okla.. | 3 0.25 47.05 HISC - Blue Cross Blue Shield of Texas | 3 0.25 47.30 Highmark Health Insurance Company | 4 0.34 47.64 Horizon Blue Cross Blue Shield of New.. | 2 0.17 47.81 Humana Insurance Company | 150 12.65 60.46 Humana Insurance Company of New York | 3 0.25 60.71 Humana Insurance of Puerto Rico, Inc. | 2 0.17 60.88 MII Life, Inc. | 4 0.34 61.21 Magellan Rx Medicare | 33 2.78 64.00 Members Health Insurance Company | 2 0.17 64.17 Regence BlueCross BlueShield of Utah | 2 0.17 64.33 Regence BlueShield of Idaho | 2 0.17 64.50 Senior Care Plus | 1 0.08 64.59 SilverScript | 101 8.52 73.10 TakeCare Insurance Company, Inc. | 2 0.17 73.27 UTIC Insurance Company | 2 0.17 73.44 UnitedHealthcare | 207 17.45 90.89 WPS Health Insurance | 2 0.17 91.06 WellCare | 102 8.60 99.66 Wellmark Blue Cross Blue Shield of So.. | 2 0.17 99.83 Wellmark Blue Cross and Blue Shield o.. | 2 0.17 100.00 ----------------------------------------+----------------------------------- Total | 1,186 100.00 by Jean Roth , jroth@nber.org , 10 Sep 2018