Fact Based List:

Top Medicare Advantage Plan National Enrollment (August 2012)

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  1. Humana - 2,061,295
  2. Unitedhealthcare - 2,024,965
  3. Kaiser Foundation HP, Inc. - 1,106,083
  4. Aetna Health Inc. - 434,088
  5. Cigna/Healthspring - 406,249
  6. Anthem Health Plans, Inc - 307,750
  7. Health Net - 228,575
  8. Blue Cross Blue Shield of Michigan - 219,296
  9. Highmark, Inc. - 197,471
  10. MMM Healthcare, Inc. - 175,442

Source: Monthly MA Enrollment by State/County/Contract, Centers for Medicare & Medicaid Services
Source URL: http://www.cms.gov/Research-Statistics-Data-and-Systems/Stat...
Notes: as of August 2012