Gregg Grunewald

Chief Operating Officer

As the Chief Operating Officer (COO) of Clarest, Gregg Grunewald plays a pivotal role in driving the organization’s accelerated growth. With a wealth of experience and expertise, Gregg brings strong leadership and managerial skills to all sectors of our operations. Before joining our team, Gregg made significant contributions at UnitedHealth Group over his impressive 29-year career in the healthcare sector. He possesses extensive knowledge and a proven track record in enhancing operational performance, executing strategic plans, and pioneering process model innovations. During his tenure at UnitedHealth Group, Gregg held various leadership positions across multiple business operations, including Pharmacy, Consumer Services, IT, Claims, Provider Contracting, Customer Account Management, Partner Management, and Organizational Compliance. Notably, he excelled as the Senior Vice President and Chief Operating Officer for UnitedHealthcare Pharmacy, where he led the planning, implementation, and delivery of services for its Medicaid and Commercial pharmacy business.

Gregg’s outstanding educational background further strengthens his expertise. He graduated Summa Cum Laude from Lakeland College and is an alumni of the esteemed Wharton School of Business. Additionally, Gregg served in the U.S. Naval Services for six years, graduating from the Naval Nuclear Power Engineering School and subsequently working as a Nuclear Engineer aboard a Submarine.


Innovation lies at the foundation of both differentiated performance and entrepreneurial spirit. When we bring an innovative spirit to our thinking and actions, we demonstrate a level of restlessness to the current and desire to promote change. An innovative spirit is more than simply the “moon shot” idea and large scale system enablement. It is the impact of people thinking creatively about process and being curious and then executing with focus and resolve to make tomorrow better than today for those we have the privilege to serve and one another.