Frequencies for companyname variable in pdp2014 dataset : Company Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 1 0.06 0.06 ARKANSAS BLUE CROSS AND BLUE SHIELD | 2 0.12 0.18 Advantage-Plus Meridian | 5 0.30 0.48 Aetna Medicare | 99 5.94 6.42 Alliance Medicare Rx | 1 0.06 6.48 AmeriHealth Rx PDP | 4 0.24 6.72 Anthem Blue Cross Life and Health Ins.. | 3 0.18 6.90 Anthem Blue Cross and Blue Shield | 32 1.92 8.82 Asuris Northwest Health | 4 0.24 9.06 Blue Cross & Blue Shield of Rhode Isl.. | 2 0.12 9.18 Blue Cross Blue Shield of Georgia | 3 0.18 9.36 Blue Cross Blue Shield of Michigan | 2 0.12 9.48 Blue Cross Blue Shield of North Dakota | 2 0.12 9.60 Blue Cross Blue Shield of South Carol.. | 2 0.12 9.72 Blue Cross Blue Shield of Wyoming | 2 0.12 9.84 Blue Cross and Blue Shield of Alabama | 2 0.12 9.96 Blue Cross and Blue Shield of Arizona | 2 0.12 10.08 Blue Cross and Blue Shield of Massach.. | 2 0.12 10.20 Blue Cross and Blue Shield of Minnesota | 2 0.12 10.32 Blue Cross and Blue Shield of Montana | 2 0.12 10.44 Blue Cross and Blue Shield of Nebraska | 2 0.12 10.56 Blue Cross and Blue Shield of North C.. | 2 0.12 10.68 Blue Cross and Blue Shield of Vermont | 2 0.12 10.80 Blue MedicareRx | 3 0.18 10.98 Blue Shield of California | 2 0.12 11.10 BlueCross BlueShield of Tennessee | 2 0.12 11.22 Cigna Medicare Rx | 153 9.18 20.40 Cigna-HealthSpring | 51 3.06 23.46 EMI Health | 4 0.24 23.70 EmblemHealth Medicare PDP | 1 0.06 23.76 EnvisionRx Plus | 51 3.06 26.81 Excellus Health Plan, Inc | 1 0.06 26.87 Express Scripts Medicare | 104 6.24 33.11 First Health Part D | 151 9.06 42.17 First Medical Health Plan, Inc. | 2 0.12 42.29 First United American Life Insurance .. | 2 0.12 42.41 Florida Blue | 2 0.12 42.53 HISC - Blue Cross Blue Shield of Illi.. | 3 0.18 42.71 HISC - Blue Cross Blue Shield of New .. | 3 0.18 42.89 HISC - Blue Cross Blue Shield of Okla.. | 3 0.18 43.07 HISC - Blue Cross Blue Shield of Texas | 3 0.18 43.25 HM Health Insurance Company | 6 0.36 43.61 Health Alliance Medicare Prescription.. | 2 0.12 43.73 Health First Health Plans | 1 0.06 43.79 HealthMarkets Medicare | 50 3.00 46.79 HealthNow New York Inc. | 1 0.06 46.85 Highmark Health Insurance Company | 4 0.24 47.09 Horizon Blue Cross Blue Shield of New.. | 2 0.12 47.21 Humana Insurance Company | 150 9.00 56.21 Humana Insurance Company of New York | 3 0.18 56.39 Humana Insurance of Puerto Rico, Inc. | 2 0.12 56.51 Medi-CareFirst BlueCross BlueShield | 6 0.36 56.87 PICA | 2 0.12 56.99 Regence BlueCross BlueShield of Utah | 2 0.12 57.11 Regence BlueShield of Idaho | 2 0.12 57.23 SecureAdvantage Rx | 6 0.36 57.59 SilverScript | 151 9.06 66.65 Stonebridge Life Insurance Company | 100 6.00 72.65 Symphonix Health | 43 2.58 75.22 Triple-S Salud, Inc. | 2 0.12 75.34 UniCare | 41 2.46 77.80 United American Insurance Company | 94 5.64 83.44 UnitedHealthcare | 156 9.36 92.80 WPS Health Insurance | 2 0.12 92.92 WellCare | 100 6.00 98.92 Wellmark Blue Cross Blue Shield of So.. | 2 0.12 99.04 Wellmark Blue Cross and Blue Shield o.. | 2 0.12 99.16 Windsor Rx | 14 0.84 100.00 ----------------------------------------+----------------------------------- Total | 1,667 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016