Mac is an American Board Certified and Texas licensed Prosthetist-Orthotist. He has been involved in the profession for more than 50 years, in roles ranging from hospital/rehabilitation settings, academia and private practice. He has authored and co-authored numerous papers, manuals, and publications and has lectured extensively at the state, national, and international levels. Involvement in professional activities include: Initiating the start-up of the current Prosthetic & Orthotic Education Program at Southwestern Medical Center in Dallas, serving 10 years on the AAOP Texas Chapter Board (2 years as President) and serving 7 years on the National Board of The American Academy of Orthotists and Prosthetists and as it’s President during the 2012-13 term. He has also been an active member of NAAOP for 17 years. He holds degrees in both Prosthetics and Orthotics and Health Science has been a Fellow of both the International Society of Prosthetics and Orthotics and The American Academy of Orthotists and Prosthetists. He initiated the American Academy’s Public Policy Committee, serving as its chair for 8 years and additionally, has served as an Academy representative on the National O&P Alliance Steering Committee, since its inception. In 2025, he led the start-up of the Academy’s Independent Practice Group and currently serves as chair. Mac and his staff at Prosthetic-Orthotic Associates (POA) have a patient-centric model of practice with the goal of maximizing the rehabilitation potential of every patient entrusted to their care.