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Jason L. Russ, FCAS, MAAA

Principal, Consulting Actuary
New York, NY, US

Tel: +1 516 5356401

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Professional Designations

  • Fellow, Casualty Actuarial Society
  • Member, American Academy of Actuaries


  • BS, Actuarial Science, New York University, Stern School of Business
  • MBA, Finance and Economics, New York University, Stern School of Business

Current Responsibility

Jason is a principal and consulting actuary with the New York office of Milliman. He joined the firm in 1997.


Jason works on property and casualty consulting assignments involving rate analyses, reserve evaluations, financial projections, cash flow analyses, and mergers and acquisitions. In addition to actuarial training, Jason has an MBA degree in finance and economics.

Jason assists in the development of the exposure model used by Milliman to evaluate asbestos, pollution, and other health hazard (APH) liabilities. He helps clients evaluate APH liabilities of many major insurers and reinsurers in the United States and abroad. His work has been done in the context of internal company reserve evaluations, regulatory oversight activities, and merger and acquisition activities.

Jason also has significant experience in the workers’ compensation and medical malpractice areas, particularly in New York.

A significant portion of Jason’s time at Milliman has been spent on due diligence assignments, such as the merger of Swiss Re and GE Insurance Solutions and the acquisitions by AXA of Winterthur.

Before joining Milliman, Jason worked at American International Group, where he specialized in reserving, ratemaking, and new product development for commercial lines.


  • General Officer, CAS Examination Committee
  • Subcommittee Chairperson, Actuarial Committee, Association of Insurance & Reinsurance Run-Off Companies
  • Member, Task Force for the Review and Update of the Statements of Principles
  • Past Chairperson, CAS Valuation, Finance and Investments Committee
  • Past Member, AAA Actuarial Standards Board Subcommittee on Reserving
  • Past Member, CAS Webinar Committee
  • Past Member, CAS Task Force on Principles
  • Past Member, CAS Committee on Management Data and Information
  • Work at Milliman

    • “I was offered a chance to come in, shake things up, create something."
    Work at Milliman