Meet Our Healthcare Analytics Specialists

To provide more insight into the Healthcare Analytics thought leaders, we've provided several brief profiles below.

Mark Rosenberg

Area President,, Healthcare Analytics Benefits & HR Consulting

North America

Mark provides senior oversight and guidance to his Healthcare Analytics team, focusing on enabling accurate quantitative monitoring and management of their clients' health plan experience. In addition to serving as project management leader, he consults directly with clients on topics such as cost-savings approaches, population health management and PBM analyses. Mark is also an active contributor to the division’s product improvement process for creating new consulting approaches and tools.

Greg Alonzo

Area Chief Operating Officer,, Healthcare Analytics Benefits & HR Consulting

North America

Greg is the Area Chief Operating Officer responsible for setting the future direction of the Healthcare Analytics data area and managing its day-to-day operation. In addition, he takes an active role in developing innovative data analytics-driven products for clients and introducing healthcare analytics resources to Gallagher's consultants. Greg blends 25 years of healthcare industry experience with the ability to listen closely, identify clients' needs, and bring forward effective solutions. Under his guidance, the Healthcare Analytics team uses data and analytics to drive and deliver powerful solutions that support health benefit decision-making and cost containment.

Glen Volk

Consulting Actuary, , Healthcare Analytics Benefits & HR Consulting

North America

Glen is the actuarial practice leader responsible for health plan forecasting, reserves, rate setting and retiree medical issues. He also oversees discount database management. With over 30 years in the field of actuarial science, Glen has a highly developed ability to analyze complex issues and bring understandable, practical solutions. He is experienced in commercial, Medicare and Medicaid markets and specializes in the public sector and healthcare industries.