Trevis G. Parson FCA MAAA FSA

Managing Director, Willis Towers Watson

Contact Information

Willis Towers Watson
Centre Square East
1500 Market Street
Philadelphia, PA 19102-4790
Trevis is Willis Towers Watson’s Chief Actuary in the Health and Benefits (H&B) business line. He resides in Philadelphia and consults on a variety of health care issues. He specializes in the pricing, design, and funding of employer sponsored health care benefits. In his role as Chief Actuary, Trevis serves on the H&B leadership team and, in doing so, works closely with specialty leaders in the areas of Pharmacy, Health Management, Health Analytics, and Group Benefits. He is responsible for the organization and deployment of nearly 300 credentialed actuaries and students. His teams develop and maintain actuarial tools and processes to value the financial impact of change in the health care marketplace. This work supports the development and delivery of new solutions and considerations for health care plan sponsors. Trevis serves as resource for consultants and clients on health care actuarial issues. He speaks regularly at external conferences and events and often represents Willis Towers Watson to the media. These conversations frequently reference results from the company’s research that Trevis supports. Trevis is an expert on exchange based health care offerings and, in particular, has worked with many employers to redesign their retiree medical plans to reduce benefit and administrative costs while providing retirees enhanced choice and value. Trevis has developed financial tools that assess the value of health care design alternatives. Some of these tools are universally used across multiple business lines within Willis Towers Watson to support strategic client decision making. Additionally, Trevis has been involved in financial reporting assignments related to post-employment benefits and has served as a subject matter expert for several retiree medical plan sponsors. Trevis joined Willis Towers Watson in 2000 and was formerly employed by Milliman USA for four years where he consulted to healthcare providers including insurance companies, HMO’s, hospitals, and physician groups. Prior to joining Milliman USA, Trevis was employed by AEGON USA, Inc. for three years where his responsibilities included reporting and pricing for small group health products. Trevis received a B.A. degree in Mathematics and in Economics from Grinnell College in 1994.

CCA Member Since 2006

Board of Directors
Strategic Planning Committee
Welcome Committee for New Members

Oh What a Catastrophe??!! What Can I Do About High-Cost Claims 2019 CCA Annual Meeting (October 30, 2019)

Professionalism for Healthcare Actuaries 2019 CCA Annual Meeting (October 29, 2019)

Health Analysis: How Plan Sponsors are Using Advanced Metrics to Drive Performance 2018 CCA Annual Meeting (October 23, 2018)

Concierge Medicine 2017 CCA Annual Meeting (October 25, 2017)

The Politics of Healthcare: Election 2016 2016 CCA Annual Meeting (October 25, 2016)

Excise Tax Update 2016 CCA Annual Meeting (October 24, 2016)

The Excise Tax 2015 CCA Annual Meeting (October 27, 2015)

Cutting Edge Healthcare Delivery 2015 CCA Annual Meeting (October 26, 2015)

Jeopardy: Healthcare Reform 2014 CCA Annual Meeting (October 21, 2014)

In What Ways Will the ACA Live Up to Its Promise? 2014 CCA Annual Meeting (October 20, 2014)

State Exchanges Update 2013 CCA Annual Meeting (October 21, 2013)

Employer Response to Healthcare Reform - Retiree Medical 2012 CCA Annual Meeting (October 24, 2012)

Reform Reshapes and Retire Medical Enviroment 2011 CCA Annual Meeting (October 25, 2011)

The Future of Medicare 2010 CCA Annual Meeting (October 25, 2010)

Medicare Futures 2009 CCA Annual Meeting (November 04, 2009)

Is Retiree Drug Subsidy (RDS) the Best Approach for Employers - or - RDS Alternatives? 2009 CCA Annual Meeting (November 04, 2009)


The Conference of Consulting Actuaries (CCA) serves only as a clearinghouse for providing a list of its members and their specific areas of practice. The information appearing with each members name regarding their practice areas was furnished by the member and has not been independently verified in any way by the CCA. Neither the CCA nor its officers, members, or staff make any warranties or representations as to the professional competency of these individuals. Each person who is considering the use of the services of an actuary listed is advised to make an independent judgment regarding their choice of persons whose services they wish to utilize.