Why You Should Trust Us

Investopedia’s team of writers, editors, and researchers analyzed 11 insurers based on 78 factors, including costs, plan options, and Medicare star ratings, to pick the top Medicare Advantage providers. Our research and ratings are entirely independent, with no influence from advertising partnerships. Investopedia was founded in 1999 and is dedicated to bringing readers unbiased reviews of financial products and services.

Investopedia’s ratings of the best Medicare companies are based on research into 13 leading providers of Medicare Advantage, Part D, and Medigap plans. We analyzed costs, plan features, coverage, and state availability to select these companies. 

For each provider, Investopedia analyzed data from trusted sources, including AM Best, the National Committee for Quality Assurance, and the Centers for Medicare and Medicaid Services. We also sourced info directly from company websites and representatives. Our data collection process ran from Aug. 27 to Oct. 10, 2024.

We developed a scoring model using this comprehensive data set to evaluate each company objectively. To ensure accuracy, all findings were cross-referenced with primary sources. We sorted each data point into key categories and weighted them according to their importance for Medicare Advantage consumers:

Customer Satisfaction: 5%

Star Ratings: 25%

Plan Types: 11%

Costs: 39%

Plan Benefits: 5%

Availability: 15%

Financial Strength: 0%

Read our full methodology for reviewing Medicare insurance providers.

Article Sources

Investopedia requires writers to use primary sources to support their work. These include white papers, government data, original reporting, and interviews with industry experts. We also reference original research from other reputable publishers where appropriate. You can learn more about the standards we follow in producing accurate, unbiased content in our

The Cigna Group. "The Cigna Group Completes Sale of Medicare Business to HCSC."

KFF. “Medicare Advantage in 2024: Enrollment Update and Key Trends.”