Frequencies for companyname variable in pdp2012 dataset : Company Name | Freq. Percent Cum. ----------------------------------------+----------------------------------- ARKANSAS BLUE CROSS AND BLUE SHIELD | 2 0.12 0.12 Aetna Medicare | 102 6.36 6.49 Alliance Medicare Rx | 1 0.06 6.55 AmeriHealth Rx | 4 0.25 6.80 Anthem Blue Cross Life and Health Ins.. | 3 0.19 6.99 Anthem Blue Cross and Blue Shield | 32 2.00 8.98 Asuris Northwest Health | 4 0.25 9.23 Avalon Insurance Company | 4 0.25 9.48 Blue Cross & Blue Shield of Rhode Isl.. | 2 0.12 9.61 Blue Cross Blue Shield of Georgia | 3 0.19 9.79 Blue Cross Blue Shield of Michigan | 2 0.12 9.92 Blue Cross Blue Shield of North Dakota | 2 0.12 10.04 Blue Cross Blue Shield of South Carol.. | 2 0.12 10.17 Blue Cross Blue Shield of Wyoming | 2 0.12 10.29 Blue Cross and Blue Shield of Alabama | 2 0.12 10.42 Blue Cross and Blue Shield of Florida.. | 2 0.12 10.54 Blue Cross and Blue Shield of Louisiana | 2 0.12 10.67 Blue Cross and Blue Shield of Massach.. | 2 0.12 10.79 Blue Cross and Blue Shield of Minnesota | 2 0.12 10.92 Blue Cross and Blue Shield of Montana | 2 0.12 11.04 Blue Cross and Blue Shield of Nebraska | 2 0.12 11.17 Blue Cross and Blue Shield of North C.. | 2 0.12 11.29 Blue Cross and Blue Shield of Vermont | 2 0.12 11.42 Blue MedicareRx | 4 0.25 11.67 Blue Shield of California | 3 0.19 11.85 BlueCross BlueShield of Tennessee | 2 0.12 11.98 Bravo Health | 39 2.43 14.41 CIGNA Medicare Rx | 79 4.93 19.34 Community CCRx PDP | 104 6.49 25.83 EMI Health | 4 0.25 26.08 EmblemHealth Medicare PDP | 1 0.06 26.14 EnvisionRx Plus | 102 6.36 32.50 First Health Part D | 151 9.42 41.92 First Medical Health Plan, Inc. | 2 0.12 42.05 First United American Life Insurance .. | 2 0.12 42.17 HISC - Blue Cross Blue Shield of Illi.. | 2 0.12 42.30 HISC - Blue Cross Blue Shield of New .. | 2 0.12 42.42 HISC - Blue Cross Blue Shield of Okla.. | 2 0.12 42.55 HISC - Blue Cross Blue Shield of Texas | 2 0.12 42.67 Health Alliance Medicare Prescription.. | 1 0.06 42.73 Health First Medicare Plans | 2 0.12 42.86 Health Net | 100 6.24 49.10 HealthSpring Prescription Drug Plan | 51 3.18 52.28 Highmark Senior Resources Inc. | 4 0.25 52.53 Horizon Blue Cross Blue Shield of New.. | 2 0.12 52.65 Humana Insurance Company | 142 8.86 61.51 Humana Insurance Company of New York | 3 0.19 61.70 Humana Insurance of Puerto Rico, Inc. | 2 0.12 61.82 MCS Classicare | 2 0.12 61.95 Medco Medicare Prescription Plan | 87 5.43 67.37 Medi-CareFirst BlueCross BlueShield | 6 0.37 67.75 PICA | 2 0.12 67.87 Preferred Medicare Choice, Inc. | 3 0.19 68.06 PrimeTime Prescription Drug Plan | 2 0.12 68.18 Priority Health Medicare | 1 0.06 68.25 Regence Life and Health | 4 0.25 68.50 SilverScript Insurance Company | 99 6.18 74.67 Simply Prescriptions | 2 0.12 74.80 Sterling Life Insurance Company | 14 0.87 75.67 Triple-S Salud, Inc. | 2 0.12 75.80 UniCare | 73 4.55 80.35 United American Insurance Company | 97 6.05 86.40 UnitedHealthcare | 107 6.67 93.08 WPS Health Insurance | 2 0.12 93.20 WellCare | 100 6.24 99.44 Wellmark Blue Cross Blue Shield of So.. | 2 0.12 99.56 Wellmark Blue Cross and Blue Shield o.. | 2 0.12 99.69 Windsor Rx | 5 0.31 100.00 ----------------------------------------+----------------------------------- Total | 1,603 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016