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Timothy J. Wilder, FSA, MAAA

Principal & Consulting Actuary
San Diego, CA, US

Tel: +1 858 5875319

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Professional Designations

  • Fellow, Society of Actuaries (2004)
  • Member, American Academy of Actuaries
  • Chairperson, ASOP #50
  • Member, Health ASOP Committee (2017 to present)
  • Member, Actuarial Advisory Board, University of California, Santa Barbara


  • BS, Mathematics and Statistics, Miami University, Oxford, Ohio

Current Responsibility

Tim Wilder is a principal with the San Diego office of Milliman. He joined the firm in 2001.


Tim specializes in helping clients assess the risks and financial implications associated with their healthcare products, reimbursement systems, and risk-sharing arrangements. Tim has worked with insurance companies, TRICARE (USFHP), HMOs, PPOs, BCBS plans, and provider organizations for all populations— Commercial, Medicare, Medicaid, and TRICARE populations.

Tim has significant experience in:

  • Assisting with healthcare benefit plan design, pricing, feasibility studies, and financial modeling
  • Working with public and private organizations in the cost evaluation of their current and proposed benefit programs
  • Developing expected utilization and cost benchmarks for commercial, Medicare, and Medicaid populations
  • Providing regulatory filings for health carriers and projecting healthcare claim reserves
  • Negotiating rates for USFHP (TRICARE) and Medicaid populations
  • Negotiating provider contracts
  • Preparing Medicare Advantage bids
  • Work at Milliman

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