Frequencies for first 10,000 rows of organizationname variable in ma2015 dataset : Organization Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- | 2 0.02 0.02 'Ohana Health Plan | 4 0.04 0.06 ADVANTAGE Health Solutions, Inc. | 202 2.02 2.08 ARKANSAS BLUE CROSS AND BLUE SHIELD | 104 1.04 3.12 Aetna Medicare | 215 2.15 5.27 Akamai Advantage by HMSA | 10 0.10 5.37 Amerigroup | 10 0.10 5.47 Anthem Blue Cross | 10 0.10 5.57 Anthem Blue Cross Life and Health Ins.. | 5 0.05 5.62 Anthem Blue Cross and Blue Shield | 286 2.86 8.48 Arcadian Health Plan, Inc. | 10 0.10 8.58 Aspire Health Plan | 3 0.03 8.61 AvMed Medicare | 2 0.02 8.63 BeHealthy America, Inc. | 2 0.02 8.65 Blue Advantage (PPO) | 90 0.90 9.55 Blue Cross Blue Shield Healthcare Pla.. | 11 0.11 9.66 Blue Cross Blue Shield of Arizona Adv.. | 7 0.07 9.73 Blue Cross Blue Shield of Georgia | 14 0.14 9.87 Blue Cross Blue Shield of IL, NM | 12 0.12 9.99 Blue Cross and Blue Shield of IL, NM,.. | 8 0.08 10.07 Blue Cross of Idaho | 214 2.14 12.21 Blue Shield of California | 12 0.12 12.33 Brand New Day | 6 0.06 12.39 CHA HMO, Inc. | 24 0.24 12.63 Capital Health Plan | 14 0.14 12.77 Care Improvement Plus | 468 4.68 17.45 Care1st Health Plan | 20 0.20 17.65 CareMore Health Plan | 11 0.11 17.76 CareMore Health Plan of Arizona, Inc. | 4 0.04 17.80 CarePlus Health Plans, Inc. | 29 0.29 18.09 Central Health Medicare Plan | 6 0.06 18.15 Cigna | 4 0.04 18.19 Cigna-HealthSpring | 130 1.30 19.49 Citizens Choice Health Plan | 16 0.16 19.65 Colorado Access Advantage | 19 0.19 19.84 Colorado Choice Health Plans | 48 0.48 20.32 Community Care Alliance of Illinois, .. | 8 0.08 20.40 ConnectiCare, Inc. | 40 0.40 20.80 Coventry Health Care | 293 2.93 23.73 Coventry Health Care of Illinois, Inc. | 135 1.35 25.08 Coventry Health Care of Missouri, Inc. | 36 0.36 25.44 Denver Health Medical Plan, Inc. | 1 0.01 25.45 Easy Choice Health Plan | 20 0.20 25.65 Erickson Advantage | 6 0.06 25.71 Essence Healthcare | 6 0.06 25.77 FLORIDA HEALTHCARE PLUS | 32 0.32 26.09 Florida Blue | 97 0.97 27.06 Florida Blue HMO | 42 0.42 27.48 Florida Health Care Plan, Inc. | 11 0.11 27.59 Freedom Health, Inc. | 55 0.55 28.14 GEMCARE Health Plan | 3 0.03 28.17 Gateway Health Medicare Assured | 210 2.10 30.27 Gundersen Health Plan, Inc. | 20 0.20 30.47 HNE Medicare Advantage Plans | 3 0.03 30.50 HUMANA HEALTH BENEFIT PLAN OF LOUISIA.. | 3 0.03 30.53 Harvard Pilgrim Health Care, Inc. | 6 0.06 30.59 Health Advantage | 4 0.04 30.63 Health Alliance Medical Plans | 576 5.76 36.39 Health Alliance Medicare | 45 0.45 36.84 Health First Health Plans, Inc. | 16 0.16 37.00 Health Net Life Insurance Company | 3 0.03 37.03 Health Net of Arizona, Inc. | 13 0.13 37.16 Health Net of California | 58 0.58 37.74 HealthSpring of Florida, Inc. | 11 0.11 37.85 HealthSun Health Plans, Inc. | 5 0.05 37.90 Humana Benefit Plan of Illinois, Inc. | 127 1.27 39.17 Humana Employers Health Plan of Georg.. | 37 0.37 39.54 Humana Health Benefit Plan of Louisia.. | 69 0.69 40.23 Humana Health Insurance Company of Fl.. | 5 0.05 40.28 Humana Health Plan of California, Inc. | 48 0.48 40.76 Humana Health Plan of Ohio, Inc. | 5 0.05 40.81 Humana Health Plan, Inc. | 177 1.77 42.58 Humana Insurance Company | 3,294 32.94 75.52 Humana Medical Plan, Inc. | 53 0.53 76.05 Indiana University Health Plans - Med.. | 99 0.99 77.04 Inter Valley Health Plan | 5 0.05 77.09 Kaiser Permanente | 121 1.21 78.30 Martin's Point Generations Advantage | 40 0.40 78.70 Medica HealthCare Plans, Inc. | 2 0.02 78.72 Medical Associates Health Plan, Inc. | 27 0.27 78.99 Meridian Health Plan | 16 0.16 79.15 North County Select | 1 0.01 79.16 Optimum HealthCare, Inc. | 23 0.23 79.39 PacificSource Medicare | 71 0.71 80.10 Peoples Health | 25 0.25 80.35 Phoenix Health Plans | 16 0.16 80.51 Piedmont WellStar HealthPlans | 11 0.11 80.62 Preferred Care Partners, Inc. | 18 0.18 80.80 Regence BlueShield Of Idaho | 48 0.48 81.28 Regence BlueShield of Idaho | 4 0.04 81.32 RiverLink Health | 3 0.03 81.35 Rocky Mountain Health Plans | 567 5.67 87.02 SCAN Health Plan | 20 0.20 87.22 SCAN Health Plan Arizona | 2 0.02 87.24 SelectHealth | 13 0.13 87.37 Simply Healthcare Plans, Inc. | 7 0.07 87.44 StableView Health | 5 0.05 87.49 Ultimate Health Plans | 6 0.06 87.55 UnitedHealthcare | 612 6.12 93.67 Universal American Corp. | 65 0.65 94.32 University Health Care Advantage | 1 0.01 94.33 VIVA Medicare | 78 0.78 95.11 Vantage Health Plan, Inc. | 144 1.44 96.55 WellCare | 345 3.45 100.00 ----------------------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016