Nikki Haddock

FSA, MAAA

Consulting Actuary

Chicago, IL, US

Main +1 312 726 0677 | Office +1 312 499 5647

Nikki Haddock is consulting actuary with the Chicago office of Milliman. She joined the firm in 2016.

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Experience

Nikki’s areas of expertise include prescription drug analytics, Medicare Part D analytics, and pharmacy management services. She is a seat holder with the Chronic Conditions Warehouse, a national research database that houses 100% Research Identifiable Files for Medicare and Medicaid data. Using this resource, she has worked on developing profitability analyses for drug manufacturers and research related to the Inflation Reduction Act. Additionally, Nikki assists major health insurance companies and employers in managing their pharmacy benefits, including PBM audits, evaluations, and strategy.

Publications and Presentations

Co-Author, Review of Carrot Fertility’s methodology used to calculate fertility treatment performance measures and outcomes. Milliman Report, January 2025.
Co-Author, Potential IRA interactions with Medicare Part D Risk Adjustment: Model considerations. Milliman White Paper, November 2023.

Professional Designations

Fellow, Society of Actuaries
Member, American Academy of Actuaries

Education

BS, Actuarial Science, University of Illinois at Urbana-Champaign

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Publications

Read their latest work

Article

Potential IRA interactions with Medicare Part D Risk Adjustment: Model considerations

07 November 2023 - by Nikki Haddock, Michelle (Klein) Robb, Jason J. Petroske

We analyze how the Inflation Reduction Act’s changes to the Medicare Part D benefit may impact risk scores, and highlight areas of importance for consideration.

Nikki Haddock

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Experience

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Read their latest work

Potential IRA interactions with Medicare Part D Risk Adjustment: Model considerations

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Nikki Haddock

Experience

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