Frequencies for first 10,000 rows of organizationname variable in planreport2009 dataset : Organization Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 6 0.06 0.06 Advantra® Freedom | 282 2.82 2.88 Advantra® Savings | 50 0.50 3.38 Aetna Medicare | 46 0.46 3.84 Blue Advantage (PPO) | 360 3.60 7.44 Blue Cross Blue Shield of Alabama | 938 9.38 16.82 Blue Cross and Blue Shield of Alabama | 540 5.40 22.22 BlueRx | 10 0.10 22.32 BlueRx (PDP) | 4 0.04 22.36 Bravo Health | 3 0.03 22.39 Bravo Health Insurance Company | 1 0.01 22.40 CIGNA Medicare Access | 444 4.44 26.84 CIGNA Medicare Rx | 19 0.19 27.03 Care Improvement Plus | 24 0.24 27.27 Cigna Medicare Rx | 9 0.09 27.36 Cigna-HealthSpring | 230 2.30 29.66 Cigna-HealthSpring Rx | 6 0.06 29.72 Community CCRx PDP | 4 0.04 29.76 Coventry AdvantraRx | 12 0.12 29.88 DaVita VillageHealth Insurance of Ala.. | 1 0.01 29.89 EnvisionRx Plus | 24 0.24 30.13 Express Scripts Medicare | 12 0.12 30.25 First Health Part D | 31 0.31 30.56 Fox Insurance Company | 1 0.01 30.57 Fresenius Medical Care Health Plan | 5 0.05 30.62 Health Net | 16 0.16 30.78 HealthMarkets Medicare | 4 0.04 30.82 HealthSpring Prescription Drug Plan | 10 0.10 30.92 Healthspring of Alabama, Inc. | 725 7.25 38.17 Humana Benefit Plan of Illinois, Inc. | 8 0.08 38.25 Humana Health Plan, Inc | 26 0.26 38.51 Humana Health Plan, Inc. | 164 1.64 40.15 Humana Insurance Company | 2,484 24.84 64.99 Medco Medicare Prescription Plan | 20 0.20 65.19 Mercy LIFE of Alabama | 12 0.12 65.31 Pennsylvania Life Insurance Company | 6 0.06 65.37 RxAmerica | 10 0.10 65.47 SecureHorizons MedicareDirect | 87 0.87 66.34 SecureHorizons by UnitedHealthcare | 236 2.36 68.70 Sierra Health and Life Insurance Comp.. | 1 0.01 68.71 SilverScript | 7 0.07 68.78 SilverScript Insurance Company | 20 0.20 68.98 Sterling Life Insurance Company | 152 1.52 70.50 Stonebridge Life Insurance Company | 8 0.08 70.58 Symphonix Health | 6 0.06 70.64 UniCare | 21 0.21 70.85 Unicare Life & Health Ins. Company | 258 2.58 73.43 United American Insurance Company | 23 0.23 73.66 UnitedHealthcare | 265 2.65 76.31 Universal American | 827 8.27 84.58 VIVA Medicare | 308 3.08 87.66 VIVA Medicare Plus | 610 6.10 93.76 WellCare | 263 2.63 96.39 Windsor Medicare Extra | 355 3.55 99.94 Windsor Rx | 6 0.06 100.00 ----------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016