The Health Care Benefits segment offers a full range of insured and self-insured (“ASC”) medical, pharmacy, dental and behavioral health products and services.
Total revenues increased 23.3% and 23.7% for the three months and year ended December 31, 2024, respectively, compared to the prior year, primarily driven by growth in the Medicare and individual exchange product lines.
During the three months ended December 31, 2024, the Health Care Benefits segment had an adjusted operating loss of $439 million compared to adjusted operating income of $676 million in the prior year. The change was primarily driven by increased utilization, the unfavorable impact of the Company’s Medicare Advantage star ratings for the 2024 payment year and the impact of higher acuity in Medicaid following the resumption of redeterminations. These decreases were partially offset by the acceleration of anticipated losses related to the fourth quarter of 2024 recorded in the third quarter of 2024 in connection with a premium deficiency reserve, higher favorable prior-period development compared to the prior year, as well as an increase in net investment income.
During the year ended December 31, 2024, the Health Care Benefits segment had an adjusted operating income of $307 million compared to adjusted operating income of $5,577 million in the prior year. The change was primarily driven by increased utilization, the unfavorable impact of the Company’s Medicare Advantage star ratings for the 2024 payment year and higher acuity in Medicaid. These decreases were partially offset by an increase in net investment income and improved fixed cost leverage across the business due to membership growth.
The MBR increased from 88.5% to 94.8% in the three months ended December 31, 2024 compared to the prior year driven by increased utilization, the unfavorable impact of the previously disclosed decline in the Company’s Medicare Advantage star ratings for the 2024 payment year and the impact of higher acuity in Medicaid. These increases were partially offset by the impact of the premium deficiency reserve recorded in the third quarter of 2024 described above and higher favorable prior-period development.
The MBR increased from 86.2% to 92.5% in the year ended December 31, 2024 compared to the prior year primarily driven by increased utilization, the unfavorable impact of the Company’s Medicare Advantage star ratings for the 2024 payment year and higher acuity in Medicaid.
Medical membership as of December 31, 2024 of 27.1 million remained relatively consistent compared with September 30, 2024. Medical membership as of December 31, 2024 of 27.1 million increased 1.4 million members compared with December 31, 2023, reflecting increases in the Medicare and individual exchange product lines.
Prior years’ health care costs payable estimates developed favorably by $885 million during the year ended December 31, 2024. This development is reported on a basis consistent with the prior years’ development reported in the health care costs payable table in the Company’s annual audited financial statements and does not directly correspond to an increase in 2024 operating results.
Days claims payable were 44.0 days as of December 31, 2024, a decrease of 0.6 days compared to September 30, 2024, primarily reflective of seasonality.