Executive Team


Mark Williams, RPh, CEO

Mark is a fourth-generation pharmacist with nearly 30 years’ retail pharmacy experience. With his two brothers, he owns and operates Williams Brothers Health Care Pharmacy, a chain of independent pharmacies with more than 500 employees. As a business owner, he realized the downfalls of many Pharmacy Benefit Managers and developed a passion for providing true, transparent PBM partnerships. Mark brings decades of pharmacy expertise and a family heritage of outstanding customer service to True Rx, transforming the PBM model. Mark is a graduate of Purdue University Pharmacy School.

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Jesse McDonald, PharmD, Chief Operating Officer

Jesse brings a community pharmacy perspective to the PBM world. As a patient-centered community pharmacist, he knows the importance of medications in improving overall health. This experience gives him a passion for developing programs to allow employers to provide these medications to their employees at an affordable cost. Jesse is a graduate of Butler University College of Pharmacy.

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Eric Barker, RPh, Vice President of Business Development

Eric brings an extensive clinical pharmacy background to True Rx. With experience in long term care and hospital pharmacy leadership, Eric recognizes the need to have a PBM operate in a clinical, member-focused manner while providing exceptional value to employers. Eric’s focus at True Rx is on program development, corporate wellness and business development. Eric believes that medication management is an invaluable tool for the overall health of an individual and he looks to partnerships with wellness programs to identify opportunities for health promotion. Eric is a graduate of the University Of Toledo College Of Pharmacy.

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Lisa Edwards, Director of Account Services

Lisa believes True Rx is more than just a Prescription Benefit provider. It is a company that focuses on delivering exceptional customer service and innovative health care solutions. Lisa oversees the Account Management team who gives every client and member the care they deserve. Drawing from over 20 years of experience in customer service, Lisa is committed to making every client’s transition to True Rx seamless.

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