Nathaniel Jacobson

FSA, MAAA

Senior Consulting Actuary

New York, NY, US

Nathaniel Jacobson is a senior consulting actuary with extensive experience working directly with providers participating in alternative payment models and value-based care arrangements. Nathaniel works closely with ACOs (MSSPs, REACH ACOs, Medicaid ACOs, and others) to project and monitor financial performance, identify opportunities, and model the impact of changes to programs.

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Experience

Nathaniel's experience as an actuary includes:

ACO participation support and modeling
Value-based care models
Risk score modeling
Capitation payment analysis

Professional Designations

Fellow, Society of Actuaries
Member, American Academy of Actuaries

Education

BA, Mathematics and Philosophy, Cornell University - Ithaca, New York

Publications

Read their latest work

Article

ACO REACH PY2026 explained: What is changing and why it matters

17 June 2025 - by Tabish Shaikh, Chris Smith, Emma Kramer, Noah Champagne, Nathaniel Jacobson

We put the Center for Medicare and Medicaid Innovation's 2026 updates to the ACO REACH program into context.

Article

Why voluntary alignment may not meet your ACO’s expectations

10 November 2022 - by Charlie Mills, Nathaniel Jacobson, Noah Champagne

We explore the voluntary alignment requirements for global/professional direct contracting and ACO REACH, along with considerations for beneficiary engagement.

Article

Health coverage in the Gig Economy – Experience from several countries

02 February 2022 - by Somya Bansal, Joanne Buckle, Diana Dodu, Nathaniel Jacobson, Alexander Krauskopf, Monika Lis, Yunzi Xia, Rong Yi

Health insurance companies must adapt and innovate their product offerings to appeal to the expectations of freelancers and on-demand gig workers.

Article

The role of pharmacy benefits on ACA market premiums: Decomposing premium trends in the individual and small group markets

27 October 2020 - by Dane Hansen, Gabriela Dieguez, Nathaniel Jacobson, Emily DeAngelis

This paper examines the role of prescription drug costs in premium increases in the Patient Protection and Affordable Care Act individual and small group marketplaces.

Article

Site of Service and Cost Dispersion of Infused Drugs

11 December 2019 - by Gabriela Dieguez, Tyler Engel, Nathaniel Jacobson

This paper examines the cost dispersion of one infused disease-modifying therapies treatment, ocrelizumab, by site of service for patients with commercial insurance, a major insurance segment for multiple sclerosis patients.

Nathaniel Jacobson

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Experience

Read their latest work

ACO REACH PY2026 explained: What is changing and why it matters

Why voluntary alignment may not meet your ACO’s expectations

Health coverage in the Gig Economy – Experience from several countries

The role of pharmacy benefits on ACA market premiums: Decomposing premium trends in the individual and small group markets

Site of Service and Cost Dispersion of Infused Drugs

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Nathaniel Jacobson

Read their latest work

ACO REACH PY2026 explained: What is changing and why it matters

Why voluntary alignment may not meet your ACO’s expectations

Health coverage in the Gig Economy – Experience from several countries

The role of pharmacy benefits on ACA market premiums: Decomposing premium trends in the individual and small group markets

Site of Service and Cost Dispersion of Infused Drugs

CHOOSE A LOCATION AND LANGUAGE