Frequencies for first 10,000 rows of organizationname variable in planreport2012 dataset : Organization Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 6 0.06 0.06 ARKANSAS BLUE CROSS AND BLUE SHIELD | 526 5.26 5.32 Abrazo Advantage Health Plan | 50 0.50 5.82 Advantage by Bridgeway Health Solutio.. | 5 0.05 5.87 Aetna Medicare | 52 0.52 6.39 Arcadian Health Plan | 63 0.63 7.02 Arkansas Community Care/ Texarkana Co.. | 10 0.10 7.12 Banner MediSun | 12 0.12 7.24 Blue Advantage (PPO) | 360 3.60 10.84 Blue Cross Blue Shield of Arizona Adv.. | 38 0.38 11.22 Blue Cross and Blue Shield of Alabama | 360 3.60 14.82 Blue Cross and Blue Shield of Arizona | 5 0.05 14.87 Blue MedicareRx | 1 0.01 14.88 BlueRx | 4 0.04 14.92 BlueRx (PDP) | 4 0.04 14.96 Bravo Health | 2 0.02 14.98 Bridgeway Health Solutions | 1 0.01 14.99 CIGNA HealthCare of Arizona | 10 0.10 15.09 CIGNA Medicare Rx | 7 0.07 15.16 COVENTRY HEALTH CARE | 48 0.48 15.64 Care Improvement Plus | 1,291 12.91 28.55 Care1st+ | 2 0.02 28.57 CareMore Health Plan of Arizona, Inc. | 76 0.76 29.33 Cigna | 10 0.10 29.43 Cigna HealthCare of Arizona | 18 0.18 29.61 Cigna Medicare Rx | 19 0.19 29.80 Cigna-HealthSpring | 268 2.68 32.48 Cigna-HealthSpring Rx | 12 0.12 32.60 Community CCRx PDP | 8 0.08 32.68 Coventry Health Care | 62 0.62 33.30 Desert Canyon Community Care | 8 0.08 33.38 EnvisionRx Plus | 25 0.25 33.63 Express Scripts Medicare | 23 0.23 33.86 First Health Part D | 41 0.41 34.27 Health Advantage | 6 0.06 34.33 Health Choice Generations HMO SNP | 45 0.45 34.78 Health Net | 8 0.08 34.86 Health Net of Arizona, Inc. | 133 1.33 36.19 HealthMarkets Medicare | 8 0.08 36.27 HealthSpring Prescription Drug Plan | 8 0.08 36.35 Healthspring of Alabama, Inc. | 282 2.82 39.17 Humana Benefit Plan of Illinois, Inc. | 8 0.08 39.25 Humana Health Plan, Inc. | 494 4.94 44.19 Humana Insurance Company | 2,851 28.51 72.70 Magellan Complete Care of Arizona | 3 0.03 72.73 Maricopa Care Advantage | 2 0.02 72.75 Medco Medicare Prescription Plan | 7 0.07 72.82 Mercy Care Advantage | 24 0.24 73.06 Mercy LIFE of Alabama | 12 0.12 73.18 Mercy Maricopa Advantage | 2 0.02 73.20 ONECare by Care1st Health Plan Arizon.. | 4 0.04 73.24 Phoenix Health Plans | 33 0.33 73.57 SCAN Health Plan Arizona | 22 0.22 73.79 SilverScript | 17 0.17 73.96 SilverScript Insurance Company | 7 0.07 74.03 Sterling Life Insurance Company | 24 0.24 74.27 Stonebridge Life Insurance Company | 16 0.16 74.43 Symphonix Health | 12 0.12 74.55 Total Life Healthcare | 32 0.32 74.87 Tribute Health Plan of Arkansas | 18 0.18 75.05 UNIVERSAL HEALTH CARE INSURANCE COMPA.. | 48 0.48 75.53 UniCare | 18 0.18 75.71 United American Insurance Company | 29 0.29 76.00 UnitedHealthcare | 397 3.97 79.97 UnitedHealthcare Community Plan | 66 0.66 80.63 Universal American Corp. | 229 2.29 82.92 Universal Health Care Insurance Compa.. | 18 0.18 83.10 University Care Advantage | 20 0.20 83.30 VIVA Medicare | 308 3.08 86.38 VIVA Medicare Plus | 252 2.52 88.90 WellCare | 146 1.46 90.36 Windsor Medicare Extra | 958 9.58 99.94 Windsor Rx | 6 0.06 100.00 ----------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016