The Trillion-Dollar Algorithm: Lessons From Machine Learning For MA Risk Adjustment Micah Johnson,Divya Shanmugam,David J. Meyers,Jenna Wiens,andEmma Pierson July 28, 2026

https://www.healthaffairs.org/content/forefront/trillion-dollar-algorithm-lessons-machine-learning-ma-risk-adjustment?utm_campaign=forefront&utm_medium=email&_hsenc=p2ANqtz--gCoo-sWBMP5fSFkw_NJMMmh9sDoxaFzGQrIOWf3HL_N5Xn9wzwJpRV34TpUYtp_kX7VztfJiVTXaaceeGccqDIAd0gA&_hsmi=431087348&utm_source=hasu The current MA risk adjustment model has shortcomings, both in predictive accuracy and payment equity across the Medicare program, which could be mitigated using lessons from machine learning.