Darin Muse
Principal actuary specializing in Medicare, Medicaid, and population health
Austin, Texas
Summary
Experienced health actuary with deep domain expertise in Medicare Advantage, Medicaid, and commercial health products. milliman+1
Combines consulting and payer-side experience, having returned to consulting after serving as Director of Actuarial Services at a Medicaid MCO. milliman+1
Active contributor to actuarial research, tools, and thought leadership—authoring white papers, technical reports, and presenting/moderating webinars on topics like star ratings, risk adjustment, and nonmedical drivers of health. milliman+3
Engages publicly via presentations and social channels to communicate technical actuarial topics to broader audiences. milliman+2
Work
Education
Projects
Writing
Unlock superior population health insights: Measuring the predictive accuracy of MARA v5
February 1, 2026Report evaluating MARA v5 XPLN models' performance in predicting healthcare spending and acute events using a large testing dataset.
Approaches for addressing nonmedical health drivers through Medicaid managed care
February 1, 2023Landscape study and actuarial analysis examining nonmedical drivers of health and state approaches to addressing them within Medicaid managed care.
Medicare Advantage star ratings: COVID-19 impacts on 2021 and 2022 star rating calculations
February 1, 2021White paper discussing how COVID-19 affected star rating calculations and the implications for Medicare Advantage organizations.
An overview of the CMS Quality Rating System for QHPs
November 1, 2019Explains the Quality Information Rating Bulletin and summarizes CMS quality information published for Qualified Health Plans (QHPs).
“A” is for actuary
September 1, 2015Article describing the role of actuarial science in digital health and how actuaries contribute to digital health development.