Nikki Haddock
ASA, MAAA
Senior Actuarial Manager
Chicago, IL, US
Nikki Haddock is a senior actuarial manager with the Chicago office of Milliman. She joined the firm in 2016.
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
- Associate, Society of Actuaries
- Member, American Academy of Actuaries
Education
- BS, Actuarial Science, University of Illinois at Urbana-Champaign
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.