Our Team

Christopher "Chris" Jaffurs
Chris has worked with physicians, medical associations and practice management groups for over 25 years. He is founder and co-owner of Physicians' Pharmaceutical Corporation and President of Keystone Pharmacy Services. He is also co-owner of Cornerstone Supplements, a nutritional supplement manufacturer.

Paul Shanor, JD in memoriam
Paul Shanor played an integral role in the creation of PPC and he is missed dearly. Paul earned his B.A. degree in Political Science and a Doctor of Law degree from Emory University in Atlanta. He had experience as a CEO, attorney, and lobbyist for the Medical Association of Georgia and Georgia Hospital Association. He facilitated the passage of legislature for Prompt Pay Standards for insurance companies and was founder and chair of the AMA Litigation Center. Before his passing, he was a member of the Board of Directors for Physicians' Pharmaceutical Corp and Vice-President of Keystone Pharmacy Services.

Tiffany Swift
Tiffany Swift has worked in financial management for over 15 years. She has served in both the financial services and banking industries as an officer and manager. In addition, she has held various customer service positions. She is Vice-President of Finance and Accounting for both Physicians’ Pharmaceutical Corporation and Keystone Pharmacy Services. Tiffany works closely with pharmaceutical purchasing and contracting. She is also part of the Internal Compliance Team.

Peyton Roberts, R.Ph
Peyton has over 15 years of retail and management experience in chain and Independent pharmacies. Prior to coming to Keystone Pharmacy Services, he was a pharmacy manager at a national retail pharmacy chain and was instrumental in establishing the pharmacist-based immunization program in the Knoxville, TN market. In his current role Peyton has worked with the Keystone operations team to open independent pharmacies, with a focus on college campuses. He has successfully helped plan, initiate, open and manage a pharmacy on the campus of the University of Tennessee and continues to implement this strategy on other campuses throughout the southeast and elsewhere. Peyton has extensive experience in pharmacy operations, including contracting, compliance and pharmacy legal issues. His desire is to ensure patients have all of the tools needed to maintain a healthy, happy, productive lifestyle through the use of current technology and offering services such as Medication Therapy Management and Medication Synchronization, while still being true to the spirit of independent pharmacy where patients are relaxed and feel welcomed.

Kris Rhea
Kris is an award-winning healthcare professional with over fifteen years of experience in the pharmacy and healthcare space. For the last eight years, he has been diligently working with Southeastern independent pharmacies through a Mckesson field-sales role. Kris is an incredible resource to our pharmacy customers with expertise in pharmacy buying and reimbursement best practices, as well as operational efficiency. His well-rounded pharmaceutical background will help them navigate the ever-changing pharmacy landscape

Eric Vinsant, JD
Mr. Vinsant earned his B.A. from the University of Tennessee and J.D. from Samford University, Cumberland School of Law. Mr. Vinsant serves as counsel to Physicians’ Pharmaceutical Corporation/Keystone Pharmacy Services, assisting the organization(s) in developing and maintaining compliance policies and programs to meet the unique needs of the organization and our customers, and helping us provide solutions to our customers in an ethical and legal manner.

Mike Mapes
Mr. Mapes is part of the Keystone Compliance team. He also serves as the Chief Compliance Officer for Assured RX Services. He has over 32 years experience with the U.S. Drug Enforcement Administration with responsibilities nationwide as well as DEA liaison to the United Nations (International Narcotics Board) in Vienna, Austria. He serves as a consultant to drug manufacturers, distributors, doctors, and pharmacies for compliance with federal laws and regulations.

Ron Sherrill, DPh , MPH
Ron has had an extensive career in the pharmacy industry. He has been involved in long term care, infusion services, medication distribution and durable medical equipment. Ron was President/CEO of Omni Healthcare Pharmacy, Inc. and current President/Owner of Caremax Pharmacy.


Affiliations & Associations

Our team actively affiliates with several professional organizations::
American College of Healthcare Executives
American Pharmacists' Association
National Association of State Controlled Substances Authorities
American Health Lawyers Association


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