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Matt Chamberlain, FCAS, MAAA

San Francisco, CA, US

Tel: +1 415 3943785

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Professional Designations

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


  • BS, Physics, The Ohio State University, Columbus, Ohio
  • BA, Classics, The Ohio State University, Columbus, Ohio
  • MS, Physics, Auburn University, Auburn, Alabama

Current Responsibility

Matt is a consulting actuary with the Property and Casualty practice in Milliman's San Francisco office. He joined the firm in 2011.


Matt's experience is primarily in personal lines property and casualty insurance. His expertise includes:

  • Developing rating classification plans using generalized linear models
  • Pricing property lines using a type-of-loss (or by peril) analysis
  • Territorial analysis, augmented by the use of third-party data
  • Catastrophe-exposed property ratemaking, especially for the hurricane, tornado/hail, and earthquake perils
  • Development of underwriting rules to manage storm surge risk
  • The use of geological and hydrological data in rating and underwriting for the sinkhole peril

His past experience has included evaluating existing rating plans and optimizing them subject to business constraints, improving the loss ratio of underperforming books of business, and evaluating companies' competitive position. His specialty is pricing for natural catastrophes and using advanced analytical techniques for small companies with a limited volume of data.

Prior to joining Milliman, Matt was senior actuary at Geovera Holdings, Inc. Prior to Geovera, he worked for Unitrin Direct and the Massachusetts Workers' Compensation Rating and Inspection Bureau.

Presentations and Publications

Matt has published articles and given presentations about location-level pricing, sinkholes, and improving profitability for smaller insurance companies.

  • Work at Milliman

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