Patrick Chestnut serves as the President & CEO and of Affiliated Services LLC. In his current role Chestnut is responsible for setting the vision, direction, and growth strategies of the company. Prior to founding Affiliated Services LLC Chestnut spent over 20 years in consulting and advisory roles working with health plans, hospitals, clinics and associations in the healthcare industry.

Chestnut has a bachelor's degree in Business Administration from Westmont College in Santa Barbara.