Our Team

With over 40 years of combined experience, our leadership team embodies our dedication to the communities and residents we serve. Along with our pharmacists, consultants, technicians, nurses, billing experts, and couriers, they never stop working to improve the care and services we provide 24/7/365.

David Whitlock

Owner / Regional President

As president of Guardian Pharmacy of the Piedmont and sister pharmacies Winyah Pharmacy Solutions and Preferred Care Pharmacy, David oversees operations, sales and marketing, financials, account management and profitability. With over 30 years of healthcare industry experience, majority of his focus has been in the long term care sector. David also has experience in hospital business development and operations, as well as skilled nursing facility administration and operations. He graduated with a bachelor’s degree in education from Winthrop College in 1987.

Bruce Dann


Bruce has been involved in the Long-Term Care Pharmacy business since 1984 serving in several operational and financial capacities including Director of Operations, President and his current role of President of Finance and Purchasing. He has a Bachelor of Science degree in Accounting and was a formerly a Certified Internal Auditor. He is married, has two daughters and lives in Pineville, NC. His outside interests include participating in competitive bowling and ping pong, the latter of which he is a former city champion.

Marcus Swann


Marc Swann, RPh, has 20 years of experience managing the operations of institutional pharmacies. Prior to joining Guardian, Mr. Swann held managerial and executive positions with Lutheran Services for The Aging and Stanley Lab, Inc. He was responsible for opening and operating a long term care pharmacy to provide services to the skilled facilities owned by LSA. Mr. Swann successfully started the pharmacy for LSA at which time he joined Stanley Lab, where he played a significant role in operations and business development. Mr. Swann is a 1992 graduate of the University of North Carolina at Chapel Hill.

Justin Dowd

Director of Pharmacy Operations

Justin Dowd, Pharm.D., is the Director of Pharmacy Operations for Guardian Pharmacy of the Piedmont. Justin has over 11 years of experience in long term care pharmacy. He has a Pharm.D. from the Medical University of South Carolina and a B.S. in psychology from Clemson University. He joined Guardian Pharmacy of the Piedmont in 2016.

Kevin Dixon

Sales and Marketing

Kevin is a graduate of the College of Charleston with a Bachelor’s of Science degree in Psychology. Kevin has over 24 years of experience in the health care industry and currently serves as the Director of Sales for Guardian Pharmacy of the Piedmont. Previously, Kevin has held positions of Director of Sales as well as Director of Operations at a long-term care pharmacy. Kevin is also a licensed assisted living administrator in South Carolina and has previously held positions of Executive Director at multiple facilities.