Frequencies for first 10,000 rows of organizationname variable in planreport2007 dataset : Organization Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- APIPA Personal Care Plus | 13 0.13 0.13 Abrazo Advantage Health Plan | 3 0.03 0.16 AdvantageCare | 36 0.36 0.52 Advantra | 8 0.08 0.60 Advantra® Freedom | 6 0.06 0.66 Aetna Health Inc. | 9 0.09 0.75 Aetna Medicare | 122 1.22 1.97 AlohaCare | 10 0.10 2.07 America's Health Choice | 22 0.22 2.29 American Pioneer Healh Plans | 15 0.15 2.44 American Pioneer Life Insurance Company | 15 0.15 2.59 Anthem Blue Cross & Blue Shield | 6 0.06 2.65 Anthem Blue Cross and Blue Shield | 9 0.09 2.74 Anthem Insurance Companies, Inc. | 3 0.03 2.77 Arkansas Blue Cross - Medi-Pak Advan.. | 75 0.75 3.52 Arkansas Blue Cross and Blue Shield | 3 0.03 3.55 Arkansas Community Care, Inc. | 70 0.70 4.25 Arta Medicare Health Plan | 2 0.02 4.27 AvMed Medicare Preferred | 2 0.02 4.29 AvMed Medicare Preferred PPO | 2 0.02 4.31 Aveta CarePartners | 1 0.01 4.32 BC LIFE & HEALTH INSURANCE COMPANY | 126 1.26 5.58 Blue Cross Blue Shield Healthcare Pla.. | 29 0.29 5.87 Blue Cross Blue Shield of Alabama | 95 0.95 6.82 Blue Cross Blue Shield of Colorado | 3 0.03 6.85 Blue Cross Blue Shield of Georgia | 3 0.03 6.88 Blue Cross Of California | 10 0.10 6.98 Blue Cross Of Idaho Hlth Services Inc | 81 0.81 7.79 Blue Cross and Blue Shield of Alabama | 3 0.03 7.82 Blue Cross and Blue Shield of Florida | 4 0.04 7.86 Blue Cross and Blue Shield of Florida.. | 3 0.03 7.89 Blue Cross of California | 17 0.17 8.06 Blue Shield of California | 9 0.09 8.15 Bravo by Elder Health | 11 0.11 8.26 CIGNA HealthCare for Seniors | 4 0.04 8.30 CIGNATURE Rx | 39 0.39 8.69 Capital Health Plan | 8 0.08 8.77 Care Improvement Plus | 1,652 16.52 25.29 Care1st Medicare Advantage Plan | 8 0.08 25.37 CareMore Health Plan | 14 0.14 25.51 CarePlus Health Plans, Inc. | 14 0.14 25.65 Central Health Medicare Plan | 2 0.02 25.67 Chinese Community Health Plan | 2 0.02 25.69 Citizens Choice Healthplan | 2 0.02 25.71 Citrus Health Care, Inc. | 39 0.39 26.10 Colorado Access | 8 0.08 26.18 Contra Costa Health Plan | 1 0.01 26.19 Coventry AdvantraRx | 39 0.39 26.58 Delaware Physicians Care Advantage | 1 0.01 26.59 Denver Health Medical Plan | 2 0.02 26.61 Desert Canyon Community Care | 6 0.06 26.67 Educators Mutual Insurance Association | 3 0.03 26.70 EnvisionRx Plus | 26 0.26 26.96 FOX Insurance Company | 4 0.04 27.00 First Health Part D | 20 0.20 27.20 Florida Health Care Plan, Inc. | 4 0.04 27.24 Freedom Health, Inc. | 38 0.38 27.62 GEMCARE Health Plan | 2 0.02 27.64 HISC - Blue Cross Blue Shield of Illi.. | 3 0.03 27.67 HMO California | 6 0.06 27.73 HMSA's 65C Plus | 20 0.20 27.93 HMSA's Medicare Rx Plan | 1 0.01 27.94 Health Alliance Medical Plans | 92 0.92 28.86 Health Choice Generations | 6 0.06 28.92 Health First Medicare Plans | 6 0.06 28.98 Health Net | 62 0.62 29.60 Health Net Life Insurance Company | 1 0.01 29.61 Health Net Of CA | 33 0.33 29.94 Health Net of Arizona, Inc. | 14 0.14 30.08 Health Net of Connecticut | 40 0.40 30.48 Health Options, Inc.\BCBSF | 3 0.03 30.51 Health Plan of San Mateo | 1 0.01 30.52 HealthSpring Prescription Drug Plan | 13 0.13 30.65 HealthSpring, Inc. | 12 0.12 30.77 HealthSun Health Plans, Inc. | 3 0.03 30.80 Healthspring of Alabama, Inc. | 132 1.32 32.12 Healthy Generations | 1 0.01 32.13 Humana Health Insurance Company Of Fl.. | 2 0.02 32.15 Humana Health Plan, Inc. | 9 0.09 32.24 Humana Insurance Company | 1,822 18.22 50.46 Humana Medical Plan, Inc. | 46 0.46 50.92 IEHP Medicare DualChoice | 2 0.02 50.94 InStil Health Insurance Company | 322 3.22 54.16 Instil Health Insurance Company | 81 0.81 54.97 Inter Valley Health Plan | 3 0.03 55.00 Kaiser Foundation Health Plan, Inc. (.. | 3 0.03 55.03 Kaiser Permanente | 111 1.11 56.14 Kaiser Permanente Senior Advantage | 24 0.24 56.38 Leon Medical Centers Health, Inc. | 1 0.01 56.39 MEMBERHEALTH | 39 0.39 56.78 Medco YOURx PLAN | 13 0.13 56.91 Medcore HP | 2 0.02 56.93 Medi-CareFirst BlueCross BlueShield | 2 0.02 56.95 Medica HealthCare Plans, Inc. | 6 0.06 57.01 Mercy Care Advantage | 3 0.03 57.04 Molina Healthcare of California | 3 0.03 57.07 NMHC Group Solutions | 13 0.13 57.20 ONECare by Care1st Health Plan Of Ari.. | 1 0.01 57.21 OSF Care Preferred | 27 0.27 57.48 OneCare | 1 0.01 57.49 Optimum HealthCare, Inc. | 4 0.04 57.53 POSITIVE HEALTHCARE PARTNERS | 1 0.01 57.54 PartnerCare Golden Advocate Plan | 108 1.08 58.62 Partnership HealthPlan of California | 3 0.03 58.65 Pennsylvania Life Insurance Company | 33 0.33 58.98 Physicians United Plan | 14 0.14 59.12 Preferred Care Partners, Inc. | 3 0.03 59.15 QUALITY HEALTH PLANS | 2 0.02 59.17 Quality Health Plans, Inc. | 92 0.92 60.09 Regence BlueShield Of Idaho | 14 0.14 60.23 Regence Life and Health | 2 0.02 60.25 Rocky Mountain Health Plans | 126 1.26 61.51 RxAmerica | 26 0.26 61.77 SAMAscript | 13 0.13 61.90 SCAN Health Plan | 8 0.08 61.98 SCAN Health Plan Arizona | 1 0.01 61.99 Secure Horizons Medicare Advantage Plan | 92 0.92 62.91 SecureHorizons | 267 2.67 65.58 SecureHorizons MedicareDirect | 16 0.16 65.74 Senior Whole Health of Connecticut | 3 0.03 65.77 Sierra Spectrum | 3 0.03 65.80 SierraRx | 22 0.22 66.02 SilverScript | 39 0.39 66.41 Southeast Community Care | 10 0.10 66.51 Sterling Life Insurance Company | 529 5.29 71.80 Summit Health Plan, Inc. | 15 0.15 71.95 Sun Health MediSunONE | 2 0.02 71.97 SunCoast Physicians Health Plan, Inc | 3 0.03 72.00 Today's Option | 984 9.84 81.84 UNITED HEALTHCARE INSURANCE COMPANY | 21 0.21 82.05 Unicare | 35 0.35 82.40 Unicare Life & Health Ins. Company | 443 4.43 86.83 United American Insurance Company | 26 0.26 87.09 United HealthCare Insurance Company | 30 0.30 87.39 United Healthcare Insurance Company | 84 0.84 88.23 UnitedHealthcare | 71 0.71 88.94 UnitedHealthcare Plan of the River Va.. | 15 0.15 89.09 Universal Health Care Insurance Compa.. | 241 2.41 91.50 Universal Health Care, Inc. | 109 1.09 92.59 VIVA Medicare Plus | 26 0.26 92.85 VillageHealth | 2 0.02 92.87 Vista Healthplan of South Florida, Inc. | 9 0.09 92.96 Vista Healthplan, Inc. | 8 0.08 93.04 WellCare | 659 6.59 99.63 Western Health Advantage | 6 0.06 99.69 Windsor Medicare Extra | 27 0.27 99.96 Windsor Rx | 4 0.04 100.00 ----------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016