Gregory L. Warren FCA MAAA FSA

SVP and Chief Actuary, Optum Advisory Services, Optum

Contact Information

169 Inverness Dr W
Englewood, CO 80112
Greg is a Fellow of the Society of Actuaries and a Member of the American Academy of Actuaries. Greg has worked as a health care actuary for over 25 years, providing strategic and financial risk guidance to payers, providers and employers in the public and private healthcare markets. His expertise includes actuarial projections as well as analytical and financial reporting for Medicare, Medicaid and Commercial Health Plans, Government entities, Accountable Care Organizations, Self-Funded Employers, Pharmacy Benefit Managers, Pharmacies and Life Sciences Companies. Greg has led the client reporting, business analytics and sales finance areas of a Fortune 50 company operating some of the largest retail, mail and specialty pharmacy operations in North America and has had executive responsibilities in a large pharmacy benefit manager overseeing the finance, underwriting, actuarial, client reporting, business analytics and pharmacy network relations functions. Greg currently serves as SVP and Chief Actuary of Optum Advisory Services, leading the Risk Management & Growth Advisory Group (actuarial, underwriting and pharmacy consulting for payers, PBMs, pharmacies and life sciences organizations) within OAS.

CCA Member Since 2015

Insurers Other Health Subset Providers Sponsors

What's Happening with My Drugs? What's Happening with My Drugs? Audio/Webcast (September 26, 2018)

Pharmacy from a Manufacturer’s Perspective 2015 CCA Annual Meeting (October 27, 2015)

The Changing Pharmacy Landscape 2015 Health Reform Meeting (April 15, 2015)


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.