Frequencies for companyname variable in pdp2009 dataset : Company Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- Aetna Medicare | 153 5.97 5.97 Alliance Medicare Rx | 3 0.12 6.09 AmeriHealth Advantage | 2 0.08 6.16 AmeriHealth Rx | 6 0.23 6.40 American Progressive Life and Health .. | 3 0.12 6.52 Anthem Blue Cross | 3 0.12 6.63 Anthem Blue Cross and Blue Shield | 33 1.29 7.92 Arkansas Blue Cross - Medi-Pak Rx | 3 0.12 8.04 Asuris Northwest Health | 4 0.16 8.19 Avalon Insurance Company | 6 0.23 8.43 BLUE CROSS AND BLUE SHIELD OF NORTH C.. | 2 0.08 8.51 Bella Vista PharmaCare | 3 0.12 8.62 Blue Cross & Blue Shield of Rhode Isl.. | 3 0.12 8.74 Blue Cross Blue Shield of Georgia | 3 0.12 8.86 Blue Cross Blue Shield of Michigan | 2 0.08 8.93 Blue Cross Blue Shield of North Dakota | 3 0.12 9.05 Blue Cross Blue Shield of South Carol.. | 2 0.08 9.13 Blue Cross Blue Shield of Wyoming | 3 0.12 9.25 Blue Cross and Blue Shield of Alabama | 2 0.08 9.33 Blue Cross and Blue Shield of Florida.. | 3 0.12 9.44 Blue Cross and Blue Shield of Louisiana | 1 0.04 9.48 Blue Cross and Blue Shield of Massach.. | 3 0.12 9.60 Blue Cross and Blue Shield of Minnesota | 3 0.12 9.72 Blue Cross and Blue Shield of Montana | 3 0.12 9.83 Blue Cross and Blue Shield of Nebraska | 3 0.12 9.95 Blue Cross and Blue Shield of Vermont | 3 0.12 10.07 Blue MedicareRx | 3 0.12 10.18 Blue Shield of California | 2 0.08 10.26 BlueCross BlueShield of Tennessee | 2 0.08 10.34 Bravo Health | 47 1.83 12.17 CIGNA Medicare Rx | 153 5.97 18.14 CITRUS HEALTH CARE | 2 0.08 18.22 CosviMed Care | 2 0.08 18.30 Coventry AdvantraRx | 153 5.97 24.27 Dean Health Insurance, Inc. | 3 0.12 24.39 Educators Mutual Insurance Association | 4 0.16 24.54 EnvisionRx Plus | 102 3.98 28.52 First Health Part D | 102 3.98 32.50 First Medical Health Plan, Inc. | 2 0.08 32.58 First United American Life Insurance .. | 2 0.08 32.66 Fox Insurance Company | 14 0.55 33.20 GHI Medicare Prescription Drug Plan | 1 0.04 33.24 Geisinger Gold | 2 0.08 33.32 HIP Insurance Company of New York | 2 0.08 33.40 HISC - BLUE CROSS AND BLUE SHIELD OF .. | 3 0.12 33.52 HISC - Blue Cross Blue Shield of Illi.. | 3 0.12 33.63 HISC - Blue Cross Blue Shield of New .. | 3 0.12 33.75 HISC - Blue Cross Blue Shield of Texas | 3 0.12 33.87 Health Net | 102 3.98 37.85 HealthNow New York Inc. | 1 0.04 37.89 HealthSpring Prescription Drug Plan | 51 1.99 39.88 Highmark Senior Resources Inc. | 6 0.23 40.11 Horizon Blue Cross Blue Shield of New.. | 2 0.08 40.19 Humana Insurance Company | 150 5.85 46.04 Humana Insurance Company of New York | 3 0.12 46.16 Humana Insurance of Puerto Rico, Inc | 2 0.08 46.23 InStil Health Insurance Company | 4 0.16 46.39 MCS Classicare | 2 0.08 46.47 Medco Medicare Prescription Plan | 156 6.09 52.56 Medi-CareFirst BlueCross BlueShield | 6 0.23 52.79 Pennsylvania Life Insurance Company | 150 5.85 58.64 Pharmacy Insurance Corporation of Ame.. | 3 0.12 58.76 Preferred Medicare Choice, Inc. | 3 0.12 58.88 PriorityMedicare Rx | 1 0.04 58.92 QUALITY HEALTH PLANS | 2 0.08 58.99 Regence Life and Health | 4 0.16 59.15 Rocky Mountain Health Plans | 2 0.08 59.23 RxAmerica | 102 3.98 63.21 Scott and White Health PlanTexas Rx P.. | 3 0.12 63.32 Sierra Health and Life Insurance Comp.. | 41 1.60 64.92 SilverScript Insurance Company | 156 6.09 71.01 Simply Prescriptions | 2 0.08 71.09 Sterling Life Insurance Company | 51 1.99 73.08 Triple-S, Inc. | 3 0.12 73.20 UPMC Health Plan | 3 0.12 73.31 UniCare | 85 3.32 76.63 United American Insurance Company | 100 3.90 80.53 UnitedHealthcare | 224 8.74 89.27 Universal American | 159 6.20 95.47 WPS Health Insurance | 3 0.12 95.59 WellCare | 102 3.98 99.57 Wellmark Blue Cross Blue Shield of So.. | 3 0.12 99.69 Wellmark Blue Cross and Blue Shield o.. | 3 0.12 99.80 Windsor Rx | 5 0.20 100.00 ----------------------------------------+----------------------------------- Total | 2,563 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016