Study: Medicare Advantage Market Seen Becoming Increasingly Concentrated

Healthcare Innovation December 10, 2024
Mark Hagland

Analysis finds policy challenges around the increasing concentration of MA contracts

A study published in the December issue of Health Affairs has found that the Medicare Advantage market has become more concentrated, a phenomenon with major policy and market implications. The article, entitled “Medicare Advantage: National Carriers Expand Market Share While Regional Carriers Without Affiliation Decline, 2012-23,” was written by G. P. Hnath, M.P.H., Michael McWilliams, and Michael E. Chernew.

Hnath is a doctoral student in the PhD Program in Health Policy at Harvard University; J. Michael McWilliams, M.D., Ph.D., is the Warren Alpert Foundation Professor of Health Care Policy and a professor of medicine at Harvard Medical School; and Michael E. Chernew, Ph.D., is the Leonard D. Schaeffer Professor...

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