
September 3, 2025
New Analysis on MA Overpayment I have argued that a small subset of big plans have given all of Medicare Advantage (MA) a bad name by suspect or fraudulent risk adjustment practices that give them major overpayments. A number of studies have singled out this small group of major plans. Now, the Alliance of Community Health Plans (ACHP), a group that represents local and regional nonprofit payers, has come out with a study building on these earlier findings. ACHP says that UnitedHealthcare, the biggest MA insurer, collected up to $785 more per beneficiary than local nonprofit plans in 2023, costing Medicare more than $6 billion in excess payments that year. Humana, the second-biggest MA payer, collected $423 more per beneficiary that year than if those members were in ACHP member plans, costing Medicare an additional $4 billion. UnitedHealthcare’s average risk scores were 36.2% higher and Humana’s were 19.2% higher than