On April 7, 2025, the Centers for Medicare and Medicaid (CMS) released its final Calendar Year (CY) 2026 Medicare Advantage (MA) Capitation Rates and Part C and Part D Payment Policies (the CY 2026 Rate Announcement). The Press Release can be found here. The fact sheet can be found here. The final Part D Redesign program instructions can be found here. (No changes were made to the redesign program, but CMS answered comments on pages 3-20). Below you will find a summary of major provisions.
MEDICARE ADVANTAGE PROVISIONS
Payment Updates
The Advanced Notice proposes to increase MA payments by 5.06%, a large update from the 3.7% last year, or $25 billion, from CY 2025-2026. This takes into account a growth rate of 9.04%, a negative adjustment for fee-for-service (FFS) normalization of -3.01%, a -0.69% decline for changes in star ratings, and other changes. The growth rate is based off Medicare FFS per capita costs as estimated by the Office of the Actuary.
In 2024, CMS initiated a three-year, phased-in approach for removing the medical education costs (related to services MA enrollees receive) from the historical and projected expenditures supporting the FFS costs that are included in the growth rate calculations. For 2026, CMS will complete the phasein of the technical adjustment by applying 100% of the adjustment for MA-related medical education costs.
Risk Adjustment Model Updates
In this notice, CMS finalized their 3-year phase-in of a new risk adjustment model. For CY2026, CMS will be calculating Hierarchical Condition Category (HCC risk) scores only through the new model. This update includes restructured condition categories using ICD-10 with updates for the underlying data years (this year, using data from 2022 and 2023). They have also updated the denominator year to determine the average per capita predicted expenditures. The overall impact of this new risk score model is -3.01%. CMS published a list of risk adjustment coefficients and predicted ratio tables for all factors starting on page 123 of the final notice.
The update will be different for Programs of All-Inclusive Care for the Elderly (PACE). CMS does not have complete encounter data for PACE and, as such, has not tied their risk score update to the standard MA risk score update. CMS hopes to have more encounter data starting from service dates in 2025 that they will be able to use in the future. For now, CMS is proposing to use a blend of the PACE HCC model and the MA HCC model over the next 5 years. While CMS did receive some comments asking for a longer timeline, CMS indicated they will be staying with the 5-year phase in.
CMS will also continue to consider frailty scores for the PACE population and certain D-SNPs (Fully Integrated Dual Eligible Special Needs Plans [FIDE SNPs]) when calculating payments.
PART D PLAN UPDATES
Standard Benefit Revisions
Below are the changes to the newly defined standard Part D drug benefit for CY 2026:
- Annual deductible. The enrollee pays 100 percent of their gross covered prescription drug costs (GCPDC) until the deductible of $615 for CY 2025 ($590 in 2025) is met.
- Initial coverage. The enrollee pays 25 percent coinsurance for covered Part D drugs. The sponsor typically pays 65 percent of the cost of applicable drugs and 75 percent of the cost of all other covered Part D drugs. The manufacturer, through the Discount Program, typically covers 10 percent of the cost of applicable drugs. In the initial coverage phase, CMS will pay a 10 percent subsidy for selected drugs during a price applicability period. This phase ends when the enrollee has reached the annual out-of-pocket (OOP) spending threshold of $2,100 for CY 2026 ($2,000 in 2025).
- Catastrophic. The enrollee pays no cost sharing for covered Part D drugs. Part D plan sponsors typically pay 60 percent of the costs of all covered Part D drugs. The manufacturer pays a discount, typically equal to 20 percent, for applicable drugs. CMS pays a reinsurance subsidy equal to 20 percent of the costs of applicable drugs, and equivalent to 40 percent of the costs of all other covered Part D drugs that are not applicable drugs. In the catastrophic phase, CMS will provide 40 percent reinsurance for selected drugs during a price applicability period.
Part D Risk Adjustment
CMS is proposing updates to the Part D risk adjustment model to reflect the Inflation Reduction Act’s (IRA’s) changes to the Part D benefit for CY 2026 – the continued implementation of the Manufacturer Discount Program and the updated OOP threshold ($2100 this year, compared to $2000 last year), as well as the new Medicare Drug Price Negotiation Program – as well as calibrating the model using more recent data years (2022 diagnoses and 2023 costs). These updates to the Part D risk adjustment model are designed to help plan sponsors develop accurate bids for CY 2026.
For the risk adjustment models for Part D (RxHCC), CMS is proposing the following changes (more details can be found starting on page 123 of the notice):
- Adjusting the annual OOP thresholds for pre-IRA data years to estimate what the threshold would have been in the prior year if the IRA were in place at the time. (P. 94 of the proposed notice – no changes in final)
- Increasing manufacturer discounts for specified manufacturers and specified small manufacturers according to the phase-in schedules under sections 1860D-14C(g)(4)(B) and (C) of the IRA. (P. 95 of the proposed notice – no changes in final)
- Adjusting gross drug costs to account for the Maximum Fair Prices (MFPs) of the selected drugs for 2026 as part of the Medicare Drug Price Negotiation Program. (P. 79)
- Updating the underlying data used in the model calibration to more recent years, specifically using diagnoses from 2022 FFS claims and MA encounter data records and gross drug costs from 2023 PDEs (the RxHCC model being proposed solely for PACE organizations will continue to use 2018 diagnoses and 2019 costs) (P. 97 of the proposed notice – no changes in final)
- Updating the denominator year from 2022 to 2023 (the RxHCC model being proposed solely for PACE organization will continue to use a 2020 denominator) (P. 98 of the proposed notice – no changes in f inal). As in MA, the PACE-only model is being phased out over time.
- For the risk sharing corridors, CMS examined plan risk sharing amounts and found significant variation year to year and among plan sponsors, so CMS is choosing to keep the risk sharing corridors unchanged. So, the risk percentages for the first and second thresholds remain at +/- 5 percent and +/-10 percent of the target amount, respectively, for CY 2026. The payment adjustments for the first and second corridors are 50 percent and 80 percent, respectively.
MA and Part D Star Ratings
Star Ratings updates include providing the list of eligible disasters for adjustment, non-substantive measure specification updates, and the list of measures included in the Part C and D improvement measures and Categorical Adjustment Index for the 2026 Star Ratings. CMS is adding one new measure to the 2026 Star Ratings – Kidney Health Evaluation for Patients with Diabetes. There are also two measures (Improving or Maintaining Physical Health and Improving or Maintaining Mental Health) returning to the 2026 Star Ratings after substantive specification changes. The list of total star ratings measures begins on page 112 of the advanced notice.
For 2026 star ratings, the deadlines for plans to review their complaints tracking model (CTM) data is May 30, 2025, and to June 30, 2025, to request a review of 2024 appeals data. (March 31, 2026, to review CTM data for 2027 Star Ratings)
CMS is also adjusting star ratings in 2026 for plans in disaster areas. For those contracts with at least 25 percent of enrollees in a FEMA-designated Individual Assistance area in 2024, contracts will receive the higher of either their current ratings or the prior year ratings.
See page 104 of the rule for a list of individual counties. The final notice also added Los Angeles county and the state of California to this list due to their recent wildfires.