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Stuart D. Rachlin, FSA, MAAA

Principal, Consulting Actuary
Tampa, FL, US

Tel: +1 813 2829262

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Professional Designations

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


  • BS, Mathematics, University of Massachusetts

Current Responsibility

Stu is a principal and consulting actuary in the Tampa office of Milliman. He joined the firm in 1998.


Stu's experience covers a wide range of healthcare topics. He has assisted clients with operational reviews, developing and pricing plan designs, and contract negotiations.

Stu has significant experience and expertise in:

  • ACA small group and individual product development and pricing, both on and off the Exchange
  • Large group pricing and underwriting
  • The Medicare Advantage Part D, PDP and Medicaid marketplaces
  • Employer group support, strategizing and helping with benefit design changes, and funding rate development
  • Provider Reimbursement strategies
  • Expert witness support

Stu works with numerous regulatory authorities. Over the years he has successfully developed cost build-ups, numerous rate filings, as well as year-end statements of actuarial opinion.

Before joining Milliman, Stu was chief actuary for a regional health plan in Cincinnati and was part of the senior management team that successfully guided the organization's integration into a national carrier. Stu began his career with CIGNA, where he held a variety of positions, including several in the group health area. Ultimately, he was the pricing actuary for several major markets.


  • Past President, Southeastern Actuaries Conference
  • Member of numerous special interest section of the Society of Actuaries
  • Work at Milliman

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